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2015-03-30ath9k: ath9k_hw_analog_shift_rmw: use REG_RMWOleksij Rempel
use REG_RMW in ath9k_hw_analog_shift_rmw. It will double execution speed on usb bus. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: ath9k_hw_4k_set_board_values: use rmw bufferOleksij Rempel
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: use rmw buffer in ath9k_hw_set_operating_mode and ath9k_hw_resetOleksij Rempel
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: ath9k_hw_set_4k_power_cal_tabl: use rmw bufferOleksij Rempel
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: write buffer related optimisation in ar5008_hw_set_channel_regsOleksij Rempel
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: ath9k_hw_loadnf: use REG_RMWOleksij Rempel
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: use one shot read in ath9k_hw_update_mibstatsOleksij Rempel
this will reduce some overhead on usb bus. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: ar9271_hw_pa_cal: use REG_READ_ARRAYOleksij Rempel
insted of reading each register separatly and waste 4ms on each operation, we can use one shot read. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: add new function ath9k_hw_read_arrayOleksij Rempel
REG_READ generate most overhead on usb bus. It send and read micro packages and reduce usb bandwidth. To reduce this overhead we should read in batches. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: add multi_read to be compatible with ath9k_htcOleksij Rempel
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: ar9271_hw_pa_cal: use RMW bufferOleksij Rempel
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: ar9271_hw_pa_cal: use proper makroses.Oleksij Rempel
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k: ar9271_hw_pa_cal - use defs instead of magin numbersOleksij Rempel
This function uses mixed styles for register names/numbers which is make harder reading and optimisation. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30ath9k_htc: add new WMI_REG_RMW_CMDID commandOleksij Rempel
Since usb bus add extra delay on each request, a command with read + write requests is too expensive. We can dramtically reduce usb load by moving this command to firmware. In my tests, this patch will reduce channel scan time for about 5-10 seconds. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30rtlwifi: Change REG_CR+2 to MSRTaehee Yoo
I changed REG_CR+2 and (MSR) to MSR because MSR is defined as (REG_CR + 2). Signed-off-by: Taehee Yoo <ap420073@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30rt2800usb: check Autorun mode on FW load only onceStanislaw Gruszka
Seems H/W report correctly firmware Autorun value only at initialization stage. When we close interface and open it again, Autorun value is 0 and we try to load firmware what kills the device. To fix clear REQUIRE_FIRMWARE firmware flag, to do not load firmware again, once we discover Autorun mode. Reported-and-tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-30cfg/mac80211: add regulatory classes IE during TDLS setupArik Nemtsov
Seems Broadcom TDLS peers (Nexus 5, Xperia Z3) refuse to allow TDLS connection when channel-switching is supported but the regulatory classes IE is missing from the setup request. Add a chandef to reg-class translation function to cfg80211 and use it to add the required IE during setup. For now add only the current regulatory class as supported - it is enough to resolve the compatibility issue. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30nl80211: small clarification of the sched_scan delay attributeLuciano Coelho
Just clarify that the delay is only before the first cycle. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30mac80211: stop scan before connectionDavid Spinadel
Stop scan before authentication or association to make sure that nothing interferes with connection flow. Currently mac80211 defers RX auth and assoc packets (among other ones) until after the scan is complete, so auth during scan is likely to fail if scan took too much time. Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30nl80211: add net-detect delay to wowlan infoLuciano Coelho
Pass the initial net-detect delay (NL80211_ATTR_SCHED_SCAN_DELAY) attribute in the WoWLAN info response. Additionally, remove a bogus TODO comment. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30mac80211: notify the driver about deauthEmmanuel Grumbach
This can allow the driver to take action based on the reason of the deauth. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30mac80211: notify the driver about association statusEmmanuel Grumbach
This can allow the driver to take action based on the success / failure of the association. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30mac80211: notify the driver about authentication statusEmmanuel Grumbach
This can allow the driver to take action based on the success / failure of the authentication. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30mac80211: convert rssi_callback() to event_callback()Emmanuel Grumbach
We will be able to add more events, such as MLME events and others. The low level driver may be interested in knowing about these events to dump firmware data upon failures, or to change parameters in case connection attempts fail etc... Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30mac80211: agg-tx: avoid sending DelBA with sta->lock heldJohannes Berg
The rate control locking caused a potential deadlock here due to the locks being acquired in different orders, so that change cannot yet be applied. However, there's no fundamental reason for this code to hold the sta->lock while transmitting frames. Clearly it's better not to hold the lock for longer periods of time, which can happen here since we call all the way down to the driver. Change the code a bit to not hold it while doing that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-29tipc: fix two bugs in secondary destination lookupJon Paul Maloy
A message sent to a node after a successful name table lookup may still find that the destination socket has disappeared, because distribution of name table updates is non-atomic. If so, the message will be rejected back to the sender with error code TIPC_ERR_NO_PORT. If the source socket of the message has disappeared in the meantime, the message should be dropped. However, in the currrent code, the message will instead be subject to an unwanted tertiary lookup, because the function tipc_msg_lookup_dest() doesn't check if there is an error code present in the message before performing the lookup. In the worst case, the message may now find the old destination again, and be redirected once more, instead of being dropped directly as it should be. A second bug in this function is that the "prev_node" field in the message is not updated after successful lookup, something that may have unpredictable consequences. The problems arising from those bugs occur very infrequently. The third change in this function; the test on msg_reroute_msg_cnt() is purely cosmetic, reflecting that the returned value never can be negative. This commit corrects the two bugs described above. Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2015-03-27 This series contains updates to i40e and i40evf. Jesse adds new device IDs to handle the new 20G speed for KR2. Mitch provides a fix for an issue that shows up as a panic or memory corruption when the device is brought down while under heavy stress. This is resolved by delaying the releasing of resources until we receive acknowledgment from the PF driver that the rings have indeed been stopped. Also adds firmware version information to ethtool reporting to align with ixgbevf behavior. Akeem increases the polling loop limiter, sine we found that in certain circumstances the firmware can take longer to be ready after a reset. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29Merge branch 'stacked_vlan_tso'David S. Miller
Toshiaki Makita says: ==================== Stacked vlan TSO On the basis of Netdev 0.1 discussion[1], I made a patch set to enable TSO for packets with multiple vlans. Currently, packets with multiple vlans are always segmented by software, which is caused by that netif_skb_features() drops most feature flags for multiple tagged packets. To allow NICs to segment them, we need to get rid of that check from core. Fortunately, recently introduced ndo_features_check() can be used to move the check to each driver, and this patch set is based on the idea. For the initial patch set, I chose 3 drivers, bonding, team, and igb, as candidates to enable TSO. I tested them and confirmed they works fine with this change. Here are samples of performance test results. As I expected, %sys gets pretty lower than before. * TEST1: vlan (.1Q) on vlan (.1ad) on igb (I350) - before $ netperf -t TCP_STREAM -H 192.168.10.1 -l 60 Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 60.02 933.72 Average: CPU %user %nice %system %iowait %steal %idle Average: all 0.13 0.00 11.28 0.01 0.00 88.58 - after $ netperf -t TCP_STREAM -H 192.168.10.1 -l 60 Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 60.01 936.13 Average: CPU %user %nice %system %iowait %steal %idle Average: all 0.24 0.00 4.17 0.01 0.00 95.58 * TEST2: vlan (.1Q) on bridge (.1ad vlan filtering) on team on igb (I350) - before $ netperf -t TCP_STREAM -H 192.168.10.1 -l 60 Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 60.01 936.28 Average: CPU %user %nice %system %iowait %steal %idle Average: all 0.41 0.00 11.57 0.01 0.00 88.01 - after $ netperf -t TCP_STREAM -H 192.168.10.1 -l 60 Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 60.02 935.72 Average: CPU %user %nice %system %iowait %steal %idle Average: all 0.14 0.00 7.66 0.01 0.00 92.19 In addition to above, I tested these configurations: - vlan (.1Q) on vlan (1.ad) on bonding on igb (I350) - vlan (.1Q) on vlan (1.Q) on igb (I350) - vlan (.1Q) on vlan (1.Q) on team on igb (I350) And didn't find any problem. [1] https://netdev01.org/sessions/18 https://netdev01.org/docs/netdev01_bof_8021ad_makita_150212.pdf ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29igb: Enable TSO for stacked vlanToshiaki Makita
As datasheets for igb (I210, I350, 82576, etc.) say, maclen can be from 14 to 127, which is enough for reasonable number of vlan tags. My netperf test showed I350's TSO works pretty fine with multiple vlans. Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29team: Don't segment multiple tagged packets on team deviceToshiaki Makita
Team devices don't need to segment multiple tagged packets since their slaves can segment them. Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29bonding: Don't segment multiple tagged packets on bonding deviceToshiaki Makita
Bonding devices don't need to segment multiple tagged packets since their slaves can segment them. Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: Introduce passthru_features_checkToshiaki Makita
As there are a number of (especially virtual) devices that don't need the multiple vlan check, introduce passthru_features_check() for convenience. Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: Move check for multiple vlans to driversToshiaki Makita
To allow drivers to handle the features check for multiple tags, move the check to ndo_features_check(). As no drivers currently handle multiple tagged TSO, introduce dflt_features_check() and call it if the driver does not have ndo_features_check(). Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29vlan: Introduce helper functions to check if skb is taggedToshiaki Makita
Separate the two checks for single vlan and multiple vlans in netif_skb_features(). This allows us to move the check for multiple vlans to another function later. Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29vlan: Add features for stacked vlan deviceToshiaki Makita
Stacked vlan devices curretly have few features (GRO, HIGHDMA, LLTX). Since we have software fallbacks in case the NIC can not handle some features for multiple vlans, we can add the same features as the lower vlan devices for stacked vlan devices. This allows stacked vlan devices to create large (GSO) packets and not to segment packets. Those packets will be segmented by software on the real device, or even can be segmented by the NIC once TSO for multiple vlans becomes enabled by the following patches. The exception is those related to FCoE, which does not have a software fallback. Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29tc: bpf: generalize pedit actionAlexei Starovoitov
existing TC action 'pedit' can munge any bits of the packet. Generalize it for use in bpf programs attached as cls_bpf and act_bpf via bpf_skb_store_bytes() helper function. Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Reviewed-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29Merge branch 'dsa-hw-bridging'David S. Miller
Guenter Roeck says: ==================== net: dsa: HW bridging, EEE support Patch 1 to 7 of this series prepare the drivers using the mv88e6xxx code for HW bridging support, without adding the code itself. For the most part this factors out common port initialization code. There is no functional change except for patch 3, which disables the message port bit for the CPU port to prevent packet duplication if HW bridging is configured. Patch 8 adds the infrastructure for hardware bridging support to the mv88e6xxx code. Patch 9 wires the MV88E6352 driver to support hardware bridging. Patches 10 to 12 add support for ndo_fdb functions to the dsa subsystem, and wire up the MV88E6352 driver to support those functions. Patches 13 to 16 add EEE support and HW bridging support to the mv88e6171 driver. This set of patches is from Andrew, applied on top of the first set of patches. The series applies to net-next as of 3/24/2015. Thanks a lot to Andrew Lunn for testing and valuable feedback. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6171: Add support for hardware bridgingAndrew Lunn
Wire up the common code for setting up hardware bridging and access to the forwarding database. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6171: Add EEE support to the mv88e6172Andrew Lunn
The mv88e6172 has support for EEE. Check for the product ID and call the common code if applicable. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6171: Add defines for switch product IDsAndrew Lunn
Make the code more readable by using defines for the switch IDs. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: Centralise getting switch idAndrew Lunn
Get the switch id and save it away in the private mv88x6xxx structure in a centralised piece of code, rather than each driver doing it itself. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6352: Add support for ndo_fdb functionsGuenter Roeck
Add support for manipulating switch fdb entries by pointing to the ndo_fdb functions implemented for mv88e6xxxx. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6xxx: Add support for fdb_add, fdb_del, and fdb_getnextGuenter Roeck
No vlan support at this time. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: Add basic framework to support ndo_fdb functionsGuenter Roeck
Provide callbacks for ndo_fdb_add, ndo_fdb_del, and ndo_fdb_dump. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6352: Add support for hardware bridgingGuenter Roeck
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6xxx: Add Hardware bridging supportGuenter Roeck
Bridge support is similar for all chips supported by the mv88e6xxx code, so add the code there. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6171: Use common port configurationGuenter Roeck
Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6123_61_65: Use common port configurationGuenter Roeck
This will simplify adding offloaded bridge support later on. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6352: Use common port initialization codeGuenter Roeck
This prepares the driver for hardware bridging. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29net: dsa: mv88e6xxx: Split mv88e6xxx_reg_read and mv88e6xxx_reg_writeGuenter Roeck
Split mv88e6xxx_reg_read and mv88e6xxx_reg_write into two functions each, one to acquire smi_mutex and one to get struct mii_bus *bus from struct dsa_switch *ds and to call the actual read/write function. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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