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2016-03-30iwlwifi: mvm: fix inconsistent lock in dqa modeLiad Kaufman
When working in DQA mode, there is a lockdep log warning about an inconsistent state of the mvmsta->lock and the mvm->queue_info_lock. Fix this. This mode is not activated for now. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: store fw memory segments length and addresses in run-timeGolan Ben-Ami
Currently reading the fw memory segments is done according to addresses and data length that are hard-coded. Lately a new tlv was appended to the ucode, that contains the data type, length and address. Parse this tlv, and in run-time store the memory segments length and addresses that would be dumped upon a fw error. Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: pcie: Fix index iteration on free_irq in MSIX modeHaim Dreyfuss
In MSIX mode we iterate over the allocated interrupt vectors and register them to an handler. In case of registration failure, we free all the allocated irq. we use the outer index mistakenly instead of the inner one. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: remove IWL_*_UCODE_API_OKEmmanuel Grumbach
_UCODE_API_OK was a intermediate version between MIN and MAX. If a user had a firmware below _OK but above _MIN, the driver would work but the user would get a warning in the kernel log telling him to update his firmware. This is not needed since most users won't look for these messages in the kernel log if their wifi is working. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: enable TCP/UDP checksum support for 9000 familySara Sharon
Declare and enable support of RX and TX checksum for 9000 family. Configure offload_assist in the TX cmd accordingly to support TX csum. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: add a scan timeout for regular scansLuca Coelho
If something goes wrong with the firmware and we never get a scan complete notification, we stay stuck forever. In order to avoid this situation, add a timeout and trigger an NMI if it expires before receiving the notification., so we can clean things up. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: move cmd queue to be #0 in dqa modeLiad Kaufman
Change the CMD queue to be queue #0 (rather than queue #9) when working in DQA mode. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: allocate dedicated queue for cab in dqa modeLiad Kaufman
In DQA mode, allocate a dedicated queue (#3) for content after beacon (AKA "CaB"). Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: set sta_id in SCD_QUEUE_CONFIG cmdLiad Kaufman
Set the correct sta_id in the SCD_QUEUE_CONFIG command sent to the FW when enabling/disabling queues. This is needed in DQA-mode to allow the FW to associate between queue and STA. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: use bss client queue for bss stationLiad Kaufman
Use the reserved BSS Client queue when connecting to an AP in DQA mode. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: edit the 9000 series PCI IDsOren Givon
Edit some of the 9560 series and 5165 series PCI IDs. These devices do not exist yet. Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: improve RSS configurationSara Sharon
Improve current RSS configuration: * Use netdev_rss_key instead of keeping a local copy. * Configure also UDP hashing to have UDP traffic spread across queues. * Do not direct RSS traffic to our fallback queue. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: pcie: request one more interrupt vectorSara Sharon
We want to request an interrupt vector for RSS queue per CPU, one vector for fallback queue, and one for non-rx interrupts. Future patch will make sure that no RSS traffic is directed to fallback queue. This will enable us to enable fast path on traffic that otherwise would have been received on the fallback queue. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: remove uneeded D0I3 checkingChaya Rachel Ivgi
The driver can read the current state during D0I3, therefore there is no reason not to do it. Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: trans: fix iwl_trans_txq_scd_cfg.sta_id signLiad Kaufman
For some reason, this was defined as a signed variable. Make it unsigned. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: set aux STA ID in scan configDavid Spinadel
Auxilary station ID in flag in scan config command wasn't set although we set the station ID. Add the flag. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: report checksum is done also for IPv6 packetsSara Sharon
Currently the code checks if hardware reported both L4 and L3 checksums as valid, and only then reports it as validated to the stack. However, IPv6 does not have checksum at all and the L3 checksum valid bit is always off for IPv6 packets, with the result of the stack re-validating L4 checksum. Fix code to set CHECKSUM_UNNECESSARY also for IPv6 packets whose TCP/UDP checksum was verified. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: dvm: use alloc_ordered_workqueue()Eva Rachel Retuya
Use alloc_ordered_workqueue() to allocate the workqueue instead of create_singlethread_workqueue() since the latter is deprecated and is scheduled for removal. There are work items doing related operations that shouldn't be swapped when queued in a certain order hence preserve the strict execution ordering of a single threaded (ST) workqueue by switching to alloc_ordered_workqueue(). WQ_MEM_RECLAIM flag is not needed since the worker is not depended during memory reclaim. Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: remove support for fw older than -16.ucodeSara Sharon
API version lower than 16 is not supported anymore - don't load older ucode. Remove code handling older versions. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: update GSCAN capabilitiesAyala Beker
Gscan capabilities were updated with new capabilities supported by the device. Update GSCAN capabilities TLV. Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: remove IWLWIFI_UAPSD KconfigEmmanuel Grumbach
We have a module parameter, this is enough. per platform customizations will be done through the init script of the platform. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: pcie: write to legacy register also in MQSara Sharon
Due to hardware bug, upon any shadow free-queue register write access, a legacy RBD shadow register must be written as well. This is required in order to trigger a copy of the shadow registers values after MAC exits sleep state. Specifically, the driver has to write (any value) to the legacy RBD register each time FRBDCB is accessed. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: support bss dynamic alloc/dealloc of queuesLiad Kaufman
"DQA" is shorthand for "dynamic queue allocation". This enables on-demand allocation of queues per RA/TID rather than statically allocating per vif, thus allowing a potential benefit of various factors. Please refer to the DOC section this patch adds to sta.h to see a more in-depth explanation of this feature. There are many things to take into consideration when working in DQA mode, and this patch is only one in a series. Note that default operation mode is non-DQA mode, unless the FW indicates that it supports DQA mode. This patch enables support of DQA for a station connected to an AP, and works in a non-aggregated mode. When a frame for an unused RA/TID arrives at the driver, it isn't TXed immediately, but deferred first until a suitable queue is first allocated for it, and then TXed by a worker that both allocates the queues and TXes deferred traffic. When a STA is removed, its queues goes back into the queue pools for reuse as needed. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: remove is_data_qos variable in TXJohannes Berg
"is_data_qos == true" is equivalent to "tid < IWL_MAX_TID_COUNT" since tid is only assigned (and range-checked) in that case. This removes a (harmless) smatch warning that occurs because it can't seem to follow the above logic from the code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: 9000: update device id and FW serial numberHaim Dreyfuss
Update device id and FW serial number for 2X2 antenna devices in 9000 generation product. These will not be available on the market in the coming year. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: make uapsd_disable module param a bitmapEmmanuel Grumbach
This allows to disable uapsd for BSS only, or P2P client separately. Remove the now unneeded IWL_MVM_P2P_UAPSD_STANDALONE constant. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: add missing mutex_destroy statementsEmmanuel Grumbach
iwlwifi / iwlmvm didn't destroy their mutexes. Fix that. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: add support for new TX CMD APISara Sharon
TX CMD API has changed to support offload assist. Currently we do not enable checksum yet, but must set the padding indication, to avoid FW errors. Set other amsdu flag as well. The rest of the flags will be configured only if HW csum is enabled and will be set in future patches. This change is backward compatible. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: pcie: do not pad QoS AMSDUSara Sharon
We insert padding if the MAC header's size is not a multiple of 4 to ensure that the SNAP header is DWORD aligned. When we do so, we let the firmware know by setting a bit in Tx command (TX_CMD_FLG_MH_PAD) which will instruct the firmware to drop those 2 bytes before sending the frame. However, this is not needed for AMSDU as the sub frame header (14B) complements the MAC header (26B) so that the SNAP header is DWORD aligned without adding any pad. Until 9000, the firmware didn't check the TX_CMD_FLG_MH_PAD bit but rather checked the length of the MAC header itself and assumed the entity that enqueued the frame (driver or internal firmware code) added the pad. Since the driver inserted the pad even for AMSDU this logic applied. Note that the padding is a DMA optimization but it's not strictly needed, so we could pad even if it was not needed. However, the CSUM hardware introduced for the 9000 devices requires to not pad AMSDU as it is not needed, and will fail if such a pad exists. Due to older FW not checking the padding bit but checking the mac header size itself - we cannot do this adjustments for older generations. Do not align the size if it is an AMSDU and HW checksum is enabled - which will only happen on 9000 devices and on. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: modify the max SP to infiniteEmmanuel Grumbach
This makes u-APSD work with more peers. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: pcie: print error value as signed intEmmanuel Grumbach
Bjorn pointed out that printing an error value as an hexadecimal isn't very convenient. Change that. Reported-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: handle async temperature notification with unlocked mutexChaya Rachel Ivgi
Use RX_HANDLER_ASYNC_UNLOCKED instead of unlock and re-lock the mutex independently. Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: pcie: refcounting is not necessary anymoreLuca Coelho
We don't use the refcount value anymore, all the refcounting is done in the runtime PM usage_count value. Remove it. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: pcie: enable interrupts explicitly on resumeSara Sharon
When entering suspend the driver calls iwl_disable_interrupts() and then iwl_pcie_disable_ict(). On resume the driver calls only iwl_pcie_reset_ict() without calling explicitly to iwl_enable_interrupts(). This mostly works since iwl_pcie_reset_ict is calling to iwl_enable_interrupts, but it doesn't work when there is no ict_table in MSIx mode. The result is that driver tries to resume but fails since it doesn't get the RX interrupt from FW indicating that d0i3 exit was completed. Fix it by adding an explicit call to enable interrupts. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: pcie: fix global table sizeSara Sharon
My patch resized the pool size, but neglected to resize the global table, which is obviously wrong since the global table maps the pool's rxb to vid one to one. This results in a panic in 9000 devices. Add a build bug to avoid such a case in the future. Fixes: 7b5424361ec9 ("iwlwifi: pcie: fine tune number of rxbs") Reported-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: add a debugfs hook for LQMAviya Erenfeld
Add debugfs entry named lqm_send_cmd for kicking a measurement. This hook takes the duration and the timeout as parameter. Signed-off-by: Aviya Erenfeld <aviya.erenfeld@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: add LQM vendor command and notificationAviya Erenfeld
LQM stands for Link Quality Measurement. The firmware will collect a defined set of statitics (see the notification for details) that allow to know how busy the medium is. The driver issues a request to the firmware that includes the duration of the measurement (the firmware needs to be on channel for that amount of time) and the timeout (in case the firmware has a lot of offchannel activities). If the timeout elapses, the firmware will send partial results which are still valuable. In case of disassociation / channel switch and alike, the driver is in charge of stopping the measurements and the firmware will reply with partial results. The user space API for now is debugfs only and will be implmemented in an upcoming patch. Signed-off-by: Aviya Erenfeld <aviya.erenfeld@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-20iwlwifi: mvm: support dumping UMAC internal txfifosGolan Ben-Ami
In case of FW error, support dumping the UMAC internal txfifos. To do so, support version 2 of shared memory cfg command, which contains the sizes of the internal txfifos, and move the command to the system group. Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-20iwlwifi: mvm: make sure FW contains the right amount of paging sectionsMatti Gottlieb
Paging contains 3 sections in the fw. The first for the paging separator, The second for the CSS block, the third with the paging data. Currently if the driver finds the paging separator, and there is only section left (CSS), once reading the CSS section, the driver will attempt to read the paging data and will go out of the arrays bounds. Make sure that the FW image contains the right amount of sections for paging. Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-20iwlwifi: mvm: Decrease size of the paging download bufferMatti Gottlieb
Currently the driver has 2 buffers for paging: 1. paging db - this contains all of the pages that were in the FW image, that the driver stores for the FW. This is allocated for each block separately (not contiguous). 2. download buffer - we need to provide this empty buffer for the iwl_sdio_load_fw_chunk function to copy the requested pages to the shared memory. This is one big buffer of contiguous memory whose size is the size of all the blocks that the fw paging section can contain. This download buffer size is too big, and causes the allocation to fail sometimes. Since the driver allocates memory for each block separately, it is not possible for the FW to request all of the pages in one request (the FW gives an address and size, so blocks need to be contiguous for this to happen), therefore the FW is limited to request only one block. Decrease the size of the paging download buffer to be the size of a paging block. Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-20iwlwifi: pcie: clear trans reference on queue stopSara Sharon
Currently when stop flow is performed, there might be transport TX RTPM references that are not freed in case we unmap a queue that still has packets not reclaimed. Fix that. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking updates from David Miller: "Highlights: 1) Support more Realtek wireless chips, from Jes Sorenson. 2) New BPF types for per-cpu hash and arrap maps, from Alexei Starovoitov. 3) Make several TCP sysctls per-namespace, from Nikolay Borisov. 4) Allow the use of SO_REUSEPORT in order to do per-thread processing of incoming TCP/UDP connections. The muxing can be done using a BPF program which hashes the incoming packet. From Craig Gallek. 5) Add a multiplexer for TCP streams, to provide a messaged based interface. BPF programs can be used to determine the message boundaries. From Tom Herbert. 6) Add 802.1AE MACSEC support, from Sabrina Dubroca. 7) Avoid factorial complexity when taking down an inetdev interface with lots of configured addresses. We were doing things like traversing the entire address less for each address removed, and flushing the entire netfilter conntrack table for every address as well. 8) Add and use SKB bulk free infrastructure, from Jesper Brouer. 9) Allow offloading u32 classifiers to hardware, and implement for ixgbe, from John Fastabend. 10) Allow configuring IRQ coalescing parameters on a per-queue basis, from Kan Liang. 11) Extend ethtool so that larger link mode masks can be supported. From David Decotigny. 12) Introduce devlink, which can be used to configure port link types (ethernet vs Infiniband, etc.), port splitting, and switch device level attributes as a whole. From Jiri Pirko. 13) Hardware offload support for flower classifiers, from Amir Vadai. 14) Add "Local Checksum Offload". Basically, for a tunneled packet the checksum of the outer header is 'constant' (because with the checksum field filled into the inner protocol header, the payload of the outer frame checksums to 'zero'), and we can take advantage of that in various ways. From Edward Cree" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits) bonding: fix bond_get_stats() net: bcmgenet: fix dma api length mismatch net/mlx4_core: Fix backward compatibility on VFs phy: mdio-thunder: Fix some Kconfig typos lan78xx: add ndo_get_stats64 lan78xx: handle statistics counter rollover RDS: TCP: Remove unused constant RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket net: smc911x: convert pxa dma to dmaengine team: remove duplicate set of flag IFF_MULTICAST bonding: remove duplicate set of flag IFF_MULTICAST net: fix a comment typo ethernet: micrel: fix some error codes ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it bpf, dst: add and use dst_tclassid helper bpf: make skb->tc_classid also readable net: mvneta: bm: clarify dependencies cls_bpf: reset class and reuse major in da ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c ldmvsw: Add ldmvsw.c driver code ...
2016-03-18Merge branch 'for-4.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: "cgroup changes for v4.6-rc1. No userland visible behavior changes in this pull request. I'll send out a separate pull request for the addition of cgroup namespace support. - The biggest change is the revamping of cgroup core task migration and controller handling logic. There are quite a few places where controllers and tasks are manipulated. Previously, many of those places implemented custom operations for each specific use case assuming specific starting conditions. While this worked, it makes the code fragile and difficult to follow. The bulk of this pull request restructures these operations so that most related operations are performed through common helpers which implement recursive (subtrees are always processed consistently) and idempotent (they make cgroup hierarchy converge to the target state rather than performing operations assuming specific starting conditions). This makes the code a lot easier to understand, verify and extend. - Implicit controller support is added. This is primarily for using perf_event on the v2 hierarchy so that perf can match cgroup v2 path without requiring the user to do anything special. The kernel portion of perf_event changes is acked but userland changes are still pending review. - cgroup_no_v1= boot parameter added to ease testing cgroup v2 in certain environments. - There is a regression introduced during v4.4 devel cycle where attempts to migrate zombie tasks can mess up internal object management. This was fixed earlier this week and included in this pull request w/ stable cc'd. - Misc non-critical fixes and improvements" * 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (44 commits) cgroup: avoid false positive gcc-6 warning cgroup: ignore css_sets associated with dead cgroups during migration Documentation: cgroup v2: Trivial heading correction. cgroup: implement cgroup_subsys->implicit_on_dfl cgroup: use css_set->mg_dst_cgrp for the migration target cgroup cgroup: make cgroup[_taskset]_migrate() take cgroup_root instead of cgroup cgroup: move migration destination verification out of cgroup_migrate_prepare_dst() cgroup: fix incorrect destination cgroup in cgroup_update_dfl_csses() cgroup: Trivial correction to reflect controller. cgroup: remove stale item in cgroup-v1 document INDEX file. cgroup: update css iteration in cgroup_update_dfl_csses() cgroup: allocate 2x cgrp_cset_links when setting up a new root cgroup: make cgroup_calc_subtree_ss_mask() take @this_ss_mask cgroup: reimplement rebind_subsystems() using cgroup_apply_control() and friends cgroup: use cgroup_apply_enable_control() in cgroup creation path cgroup: combine cgroup_mutex locking and offline css draining cgroup: factor out cgroup_{apply|finalize}_control() from cgroup_subtree_control_write() cgroup: introduce cgroup_{save|propagate|restore}_control() cgroup: make cgroup_drain_offline() and cgroup_apply_control_{disable|enable}() recursive cgroup: factor out cgroup_apply_control_enable() from cgroup_subtree_control_write() ...
2016-03-18bonding: fix bond_get_stats()Eric Dumazet
bond_get_stats() can be called from rtnetlink (with RTNL held) or from /proc/net/dev seq handler (with RCU held) The logic added in commit 5f0c5f73e5ef ("bonding: make global bonding stats more reliable") kind of assumed only one cpu could run there. If multiple threads are reading /proc/net/dev, stats can be really messed up after a while. A second problem is that some fields are 32bit, so we need to properly handle the wrap around problem. Given that RTNL is not always held, we need to use bond_for_each_slave_rcu(). Fixes: 5f0c5f73e5ef ("bonding: make global bonding stats more reliable") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Andy Gospodarek <gospo@cumulusnetworks.com> Cc: Jay Vosburgh <j.vosburgh@gmail.com> Cc: Veaceslav Falico <vfalico@gmail.com> Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-18net: bcmgenet: fix dma api length mismatchEric Dumazet
When un-mapping skb->data in __bcmgenet_tx_reclaim(), we must use the length that was used in original dma_map_single(), instead of skb->len that might be bigger (includes the frags) We simply can store skb_len into tx_cb_ptr->dma_len and use it at unmap time. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-18net/mlx4_core: Fix backward compatibility on VFsEli Cohen
Commit 85743f1eb345 ("net/mlx4_core: Set UAR page size to 4KB regardless of system page size") introduced dependency where old VF drivers without this fix fail to load if the PF driver runs with this commit. To resolve this add a module parameter which disables that functionality by default. If both the PF and VFs are running with a driver with that commit the administrator may set the module param to true. The module parameter is called enable_4k_uar. Fixes: 85743f1eb345 ('net/mlx4_core: Set UAR page size to 4KB ...') Signed-off-by: Eli Cohen <eli@mellanox.com> Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-18Merge branch 'for-4.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: - ahci grew runtime power management support so that the controller can be turned off if no devices are attached. - sata_via isn't dead yet. It got hotplug support and more refined workaround for certain WD drives. - Misc cleanups. There's a merge from for-4.5-fixes to avoid confusing conflicts in ahci PCI ID table. * 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ata: ahci_xgene: dereferencing uninitialized pointer in probe AHCI: Remove obsolete Intel Lewisburg SATA RAID device IDs ata: sata_rcar: Use ARCH_RENESAS sata_via: Implement hotplug for VT6421 sata_via: Apply WD workaround only when needed on VT6421 ahci: Add runtime PM support for the host controller ahci: Add functions to manage runtime PM of AHCI ports ahci: Convert driver to use modern PM hooks ahci: Cache host controller version scsi: Drop runtime PM usage count after host is added scsi: Set request queue runtime PM status back to active on resume block: Add blk_set_runtime_active() ata: ahci_mvebu: add support for Armada 3700 variant libata: fix unbalanced spin_lock_irqsave/spin_unlock_irq() in ata_scsi_park_show() libata: support AHCI on OCTEON platform
2016-03-18Merge branch 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds
Pull workqueue updates from Tejun Heo: "Three trivial workqueue changes" * 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Fix comment for work_on_cpu() sched/core: Get rid of 'cpu' argument in wq_worker_sleeping() workqueue: Replace usage of init_name with dev_set_name()
2016-03-18phy: mdio-thunder: Fix some Kconfig typosAndreas Färber
Drop two extra occurrences of "on" in option title and help text. Fixes: 379d7ac7ca31 ("phy: mdio-thunder: Add driver for Cavium Thunder SoC MDIO buses.") Cc: David Daney <david.daney@cavium.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-18lan78xx: add ndo_get_stats64Woojung Huh
Add lan78xx_get_stats64 of ndo_get_stats64 to report all statistics counters including errors from HW statistics. Read from HW when auto suspend is disabled, use saved counter when auto suspend is enabled because periodic call to ndo_get_stats64 prevents USB auto suspend. Signed-off-by: Woojung Huh <woojung.huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>