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* iwlwifi: mvm: Do not switch to D3 image on suspendMatti Gottlieb2016-02-017-38/+70
| | | | | | | | | | | | | | | | Currently when the driver is configured with wowlan parameters, and enters D3 mode, the driver switches the FW image to D3, and when it exists suspend, it reloads the D0 image. If the firmware supports the consolidation of the D0 & D3 images there is no need to load the D3 image on suspend, and no need to reload the D0 image on resume. Do not switch images on suspend / resume, for firmwares that support consolidated images. Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
* iwlwifi: pcie: add RTPM support when wifi is enabledLuciano Coelho2016-02-015-27/+141
| | | | | | | | | | | | Enable runtime power management (RTPM) for PCIe devices and implement the corresponding functions to enable D0i3 mode when the device is idle. Additionally, remove some unnecessary #ifdef's because the RTPM code will not be called if runtime PM is not configured. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
* iwlwifi: pcie: add initial RTPM support for PCILuca Coelho2016-02-013-3/+96
| | | | | | | | | | Add an initial implementation of runtime power management (RTPM) for PCI devices. With this patch, RTPM is only used when wifi is off (i.e. the wifi interface is down). This implementation is behind a new Kconfig flag, IWLWIFI_PCIE_RTPM. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
* iwlwifi: pcie: add 9000 series multi queue rx DMA supportSara Sharon2016-01-316-80/+322
| | | | | | | | | | | | | | | | | | | | | The 9000 series introduces several changes in the device DMA operation. As the device now supports multi-queue rx, several DMA channels should be configured. The flows of providing the device with the allocated RBDs now changes as well - the device maintains a separate table of used and free table. The hardware may use the free table to feed RBDs to any queue. This requires maintaing a shared table to map returned RBDs to the original RXB - for that purpose the VID is introduced - an internal identifier of the RB placed in the lower 12 bits and returned by HW in the used data. Another change is the support of 64 bit DMA address. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
* iwlwifi: pcie: add infrastructure for multi-queue rxSara Sharon2016-01-313-154/+191
| | | | | | | | | | | | | | | | | | | | | | | The 9000 series devices will support multi rx queues. Current code has one static rx queue - change it to allocate a number of queues per the device capability (pre-9000 devices have the number of rx queues set to one). Subsequent generalizations are: Change the code to access an explicit numbered rx queue only when the queue number is known - when handling interrupt, when accessing the default queue and when iterating the queues. The rest of the functions will receive the rx queue as a pointer. Generalize the warning in allocation failure to consider the allocator status instead of a single rx queue status. Move the rx initial pool of memory buffers to be shared among all the queues and allocated to the default queue on init. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
* iwlwifi: pcie: buffer packets to avoid overflowing Tx queuesEmmanuel Grumbach2016-01-312-8/+62
| | | | | | | | | | | | | | | | | | | | | | When the Tx queues are full above a threshold, we immediately stop the mac80211's queue to stop getting new packets. This worked until TSO was enabled. With TSO, one single packet from mac80211 can use many descriptors since a large send needs to be split into several segments. This means that stopping mac80211's queues is not enough and we also need to ensure that we don't overflow the Tx queues with one single packet from mac80211. Add code to transport layer to do just that. Stop mac80211's queue as soon as the queue is full above the same threshold as before, and keep pushing the current packet along with its segments on the queue, but check that we don't overflow. If that would happen, buffer the segments, and send them when there is room in the Tx queue again. Of course, we first need to send the buffered segments and only then, wake up mac80211's queues. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2016-01-12759-4723/+9153
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from Davic Miller: 1) Support busy polling generically, for all NAPI drivers. From Eric Dumazet. 2) Add byte/packet counter support to nft_ct, from Floriani Westphal. 3) Add RSS/XPS support to mvneta driver, from Gregory Clement. 4) Implement IPV6_HDRINCL socket option for raw sockets, from Hannes Frederic Sowa. 5) Add support for T6 adapter to cxgb4 driver, from Hariprasad Shenai. 6) Add support for VLAN device bridging to mlxsw switch driver, from Ido Schimmel. 7) Add driver for Netronome NFP4000/NFP6000, from Jakub Kicinski. 8) Provide hwmon interface to mlxsw switch driver, from Jiri Pirko. 9) Reorganize wireless drivers into per-vendor directories just like we do for ethernet drivers. From Kalle Valo. 10) Provide a way for administrators "destroy" connected sockets via the SOCK_DESTROY socket netlink diag operation. From Lorenzo Colitti. 11) Add support to add/remove multicast routes via netlink, from Nikolay Aleksandrov. 12) Make TCP keepalive settings per-namespace, from Nikolay Borisov. 13) Add forwarding and packet duplication facilities to nf_tables, from Pablo Neira Ayuso. 14) Dead route support in MPLS, from Roopa Prabhu. 15) TSO support for thunderx chips, from Sunil Goutham. 16) Add driver for IBM's System i/p VNIC protocol, from Thomas Falcon. 17) Rationalize, consolidate, and more completely document the checksum offloading facilities in the networking stack. From Tom Herbert. 18) Support aborting an ongoing scan in mac80211/cfg80211, from Vidyullatha Kanchanapally. 19) Use per-bucket spinlock for bpf hash facility, from Tom Leiming. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1375 commits) net: bnxt: always return values from _bnxt_get_max_rings net: bpf: reject invalid shifts phonet: properly unshare skbs in phonet_rcv() dwc_eth_qos: Fix dma address for multi-fragment skbs phy: remove an unneeded condition mdio: remove an unneed condition mdio_bus: NULL dereference on allocation error net: Fix typo in netdev_intersect_features net: freescale: mac-fec: Fix build error from phy_device API change net: freescale: ucc_geth: Fix build error from phy_device API change bonding: Prevent IPv6 link local address on enslaved devices IB/mlx5: Add flow steering support net/mlx5_core: Export flow steering API net/mlx5_core: Make ipv4/ipv6 location more clear net/mlx5_core: Enable flow steering support for the IB driver net/mlx5_core: Initialize namespaces only when supported by device net/mlx5_core: Set priority attributes net/mlx5_core: Connect flow tables net/mlx5_core: Introduce modify flow table command net/mlx5_core: Managing root flow table ...
| * brcmfmac: Do not handle link downs for ibss.Hante Meuleman2016-01-081-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes on module reload and reconnect to ibss a deauth from other station can be received. This is treated as a link down but for ibss this is wrong. It will close the interface and no data is possible. Ignore the firmware generated link down events in ibss mode, as ibss is always teared down by cfg80211. Reviewed-by: Arend Van Spriel <arend@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * brcmfmac: use jiffies for timeout in btcoexArend van Spriel2016-01-081-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | The btcoex uses a timeout which was in milliseconds and got converted to jiffies upon using timer api. Instead, convert it to jiffies and treat it as such further. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * brcmfmac: use msecs_to_jiffies() in macro definitionsArend van Spriel2016-01-089-33/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | Instead to having macro definition for millisecond timeout have the definition directly in jiffies. This makes the unit of the value immediately clear and may result in code that is bit more compact. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * brcmfmac: change brcmf_sdio_wd_timer() prototypeArend van Spriel2016-01-082-22/+13
| | | | | | | | | | | | | | | | | | | | | | | | The function brcmf_sdio_wd_timer() has wdtick parameter. However, it is only called with two values and as such the parameter is replaced with boolean value indicating the timer should be active or not. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * brcmfmac: Reshuffle functions to avoid forward declarationsHante Meuleman2016-01-081-306/+290
| | | | | | | | | | | | | | | | | | | | | | | | Function prototype forward declarations are to be avoided. This patch shuffles some of the functions so the forward declarations can be removed. Reviewed-by: Arend Van Spriel <arend@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * brcmfmac: Add wowl net detect supportHante Meuleman2016-01-083-16/+155
| | | | | | | | | | | | | | | | | | | | | | | | With wowl net detect it becomes possible to scan for specific ssids and wakeup once found. Reviewed-by: Arend Van Spriel <arend@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * Merge tag 'iwlwifi-next-for-kalle-2016-01-07_2' of ↵Kalle Valo2016-01-0724-121/+505
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next * bug fixes and improvements for firmware debug system (Golan and myself) * fixes for D0i3 (Eliad) * prevent muliple stations with the same MAC address * advertise support for Rx A-MSDU in A-MPDU * scan related fixes * support -20.ucode * fix WoWLAN for iwldvm * preparations towards multiple Rx queues * platform power improvements for GO mode when no clients are associated
| | * iwlwifi: pcie: properly configure the debug buffer size for 8000Emmanuel Grumbach2016-01-071-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 8000 device family has a new debug engine that needs to be configured differently than 7000's. The debug engine's DMA works in chunks of memory and the size of the buffer really means the start of the last chunk. Since one chunk is 256-byte long, we should configure the device to write to buffer_size - 256. This fixes a situation were the device would write to memory it is not allowed to access. CC: <stable@vger.kernel.org> [4.1+] Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: fix memory leaks in error paths upon fw error dumpEmmanuel Grumbach2016-01-071-8/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When iwl_mvm_fw_error_dump fails, it needs to clear the state in mvm, which includes: * clear IWL_MVM_STATUS_DUMPING_FW_LOG * set mvm->fw_dump_trig to NULL * free the description While at it, remove a NULL check in iwl_mvm_free_fw_dump_desc since kfree is NULL safe. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: constify the parameters of a few functions in fw-dbg.cEmmanuel Grumbach2016-01-075-13/+13
| | | | | | | | | | | | | | | | | | | | | | | | The debug functions of fw-dbg.c don't really need to modify the trigger and the description they receive as a parameter. Constify the pointers. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: check minimum temperature notification lengthJohannes Berg2016-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This notification will be extended with extra data, so just check that it has a minimum length, not the exact length; we might later add handling for the extra fields added and have more code to handle both versions. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: initialize gtkdata->mvm correctlyEliad Peller2016-01-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gtkdata->mvm wasn't set in iwl_mvm_d0i3_update_keys, resulting in kernel panic in some flows (when mvm is actually used...) Fixes: a3f7ba5c8825 ("iwlwifi: update key params on d0i3 entrance/exit") Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: check PN for CCMP/GCMP in the driverJohannes Berg2016-01-074-33/+245
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As we're working on multi-queue RX, we want to parallelise checking the PN in order to avoid having to serialise the RX processing. It may seem that doing parallel PN checking is insecure, but it turns out to be OK because queue assignment is done based on the data in the frame (IP/TCP) and thus cannot be manipulated by an attacker, since the data is encrypted and must first have been decrypted successfully. There are some corner cases, in particular when the peer starts using fragmentation which redirects the packet to the default queue. However this redirection is remembered (for the STA, per TID) and thus cannot be exploited by an attacker either. Leave checking on the default queue (queue 0) to mac80211, since we get fragmented packets there and those are subject to stricter checks during reassembly. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: don't ask beacons when P2P GO vif and no assoc staAyala Beker2016-01-071-25/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit below called iwl_mvm_mac_ctxt_changed() to handle a case that the vif is a P2P GO. However iwl_mvm_mac_ctxt_cmd_go() ignores the number of associated stations and asks the FW to pass beacons anyways. Fix this by checking ap_assoc_sta_count parameter, in iwl_mvm_mac_ctxt_cmd_go() as well, and ask the FW to pass beacons only when there's at least one associated station. Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: prevent multiple stations with the same addressJohannes Berg2016-01-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As the device (and parts of the driver) cannot deal with having the same MAC address for two stations (on two virtual interfaces), add some explicit code to prevent this case. Note that in practice this cannot happen since the device doesn't support operating with two AP/GO interfaces at the same time either, and other scenarios for this are, while not impossible, not going to happen in practice. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: remove useless WARN_ON and rely on cfg80211's combinationEmmanuel Grumbach2016-01-071-2/+0
| | | | | | | | | | | | | | | | | | | | | We advertise one STATION vif only, so this just can't happen. Remove this useless WARN_ON. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: support A-MSDU in A-MPDUJohannes Berg2016-01-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Since A-MPDU deaggregation is done in hardware, and A-MSDU deaggregation is done in software, there's no reason not to support A-MSDU in A-MPDU; set the flag to support it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: add a non-trigger window to fw dbg triggersGolan Ben-Ami2016-01-073-1/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow the user to configure a non-trigger session - a window between triggers in which the driver won't collect fw debug data. This can be useful when the frequent collection of fw data has an impact on the performance, such as debugging tx flows. Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: dump the radio registers when the firmware crashesEmmanuel Grumbach2016-01-073-2/+46
| | | | | | | | | | | | | | | | | | | | | Dumping the content of the radio registers greatly helps to debug PHY issues, which can lead to TFD queue hang. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: fix extended dwell timeDavid Spinadel2016-01-071-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FW adds 10 msec for every dwell time in low band, so we need to set 10 msec less. Don't use extended dwell time when fragmented scan is needed because FW adds 3 msec per probe and it can easily exceed max out of channel time. Fixes: c3e230b167a9 ("iwlwifi: mvm: add extended dwell time") Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: nvm: fix loading default NVM fileOren Givon2016-01-071-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Fix loading the default NVM file, in the case where the requested NVM file isn't found in the file system. Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: bump max API to 20Emmanuel Grumbach2016-01-073-3/+3
| | | | | | | | | | | | | | | | | | 7265D and up are now able to handle -20.ucode. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: set max firmware version of 7265 to 17Emmanuel Grumbach2016-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Just like 7260, 7265 will not have firmware releases newer than iwlwifi-7265-17.ucode. 7265D is still supported in latest firmware releases. Fixes: 628a2918afe4 ("iwlwifi: separate firmware version for 7260 devices") Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: reset mvm->scan_type when firmware is startedEmmanuel Grumbach2016-01-072-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we don't reset the scan type when the firmware is started, we will think the firmware is still configured after the interface has been brought down. When we will bring it up again, we will not configure the scan type in firmware and it will crash with the following assert: 0x0000100A | ADVANCED_SYSASSERT Fixes: 355346ba3050 ("iwlwifi: mvm: configure scheduled scan according to traffic conditions") Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: change mcc update APIMatti Gottlieb2016-01-073-16/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New functionality for testing that is not relevant for this driver has been added. This required an API change. Add new cmd & response versions for the MCC update cmd & response. Add new TLV indicating that the FW is using the new API. Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: let the firmware choose the antenna for beaconsEmmanuel Grumbach2016-01-072-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | The firmware knows better what antenna to choose. Old firmware still need the setting, so use a flag to know if the driver should choose the antenna or if the firmware can do it iself. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: update and fix 7265 series PCI IDsOren Givon2016-01-071-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | Update and fix some 7265 PCI IDs entries. CC: <stable@vger.kernel.org> [3.13+] Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: dvm: fix WoWLANEmmanuel Grumbach2016-01-071-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My commit below introduced a mutex in the transport to prevent concurrent operations. To do so, it added a flag (is_down) to make sure the transport is in the right state. This uncoverred an bug that didn't cause any harm until now: iwldvm calls stop_device and then starts the firmware without calling start_hw in between. While this flow is fine from the device configuration point of view (register, etc...), it is now forbidden by the new is_down flag. This led to this error to appear: iwlwifi 0000:05:00.0: Can't start_fw since the HW hasn't been started and the suspend would fail. This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=109591 CC: <stable@vger.kernel.org> [4.3+] Reported-by: Bogdan Bogush <bogdan.s.bogush@gmail.com> Fixes=fa9f3281cbb1 ("iwlwifi: pcie: lock start_hw / start_fw / stop_device") Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| * | Merge ath-next from ath.gitKalle Valo2016-01-0714-57/+129
| |\ \ | | | | | | | | | | | | No major changes to list.
| | * | wcn36xx: split DMA mask register writing.Fengwei Yin2016-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Per comments from Bjorn Andersson <bjorn.andersson@sonymobile.com>, split DMA mask register writing as seperate patch in case we need bi-sect in the furture. Signed-off-by: Fengwei Yin <fengwei.yin@linaro.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | wcn36xx: handle rx skb allocation failure to avoid system crashFengwei Yin2016-01-071-21/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Lawrence reported that git clone could make system crash on a Qualcomm ARM soc based device (DragonBoard, 1G memory without swap) running 64bit Debian. It's turned out the crash is related with rx skb allocation failure. git could consume more than 600MB anonymous memory. And system is in extremely memory shortage case. But driver didn't handle the rx allocation failure case. This patch doesn't submit skb to upper layer if rx skb allocation fails. Instead, it reuse the old skb for rx DMA again. It's more like drop the packets if system is in memory shortage case. With this change, git clone is OOMed instead of system crash. Reported-by: King, Lawrence <lking@qti.qualcomm.com> Signed-off-by: Fengwei Yin <fengwei.yin@linaro.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | ath9k: fix ath9k_hw_nvram_check_version()Dan Carpenter2016-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a type bug so it always returns success. Fixes: 6fa658fd5ab2 ('ath9k: Simplify and fix eeprom endianness swapping') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | ath9k: Enable support for cloned SKBSPawel Kulakowski2016-01-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ath9k driver does not modify tx skbs, so SUPPORTS_CLONED_SKBS flag can be set. Enabling this flag significant reduce number of copy operation during TCP Tx. This is especially noticeable on platforms with slower CPU (lower CPU usage brings profits in better TCP Tx troughput results). Tested on MIPS with 560 MHz clock Without CLONED_SKBS flag: TCP Tx 145 Mb/s (iperf result) __copy_user_common consumes 12.9% of CPU (result from perf tool) 0% CPU Idle With CLONED_SKBS flag: TCP Tx 170 Mb/s (iperf result) __copy_user_common consumes 1.8% of CPU (result from perf tool) 12% CPU Idle Signed-off-by: Pawel Kulakowski <pawel.kulakowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | wil6210: support for platform specific crash recoveryLior David2016-01-076-10/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Added a simple interface for platform to perform crash recovery. When firmware crashes, wil driver can notify the platform which can trigger a crash recovery process. During the process the platform can request a ram dump from the wil driver as well as control when firmware recovery will start. This interface allows the platform to implement a more advanced crash recovery, for example to reset dependent subsystems in proper order, or to provide its own notifications during the recovery process. Signed-off-by: Lior David <qca_liord@qca.qualcomm.com> Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | wil6210: fix kernel OOPS when stopping interface during Rx trafficHamad Kadmany2016-01-071-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When network interface is stopping, some resources may be already released by the network stack, and Rx frames cause kernel OOPS (observed one is in netfilter code) Proper solution is to drop packets pending in reorder buffer. Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com> Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | ath10k: set SM power save disabled to default valuePeter Oh2016-01-071-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use SMPS disabled as default because FW does not indicate any support of SMPS. This change will help STAs out that don’t support SMPS from sticking on 1SS, since they don’t have method to change it back to multiple chains. This change also should not affect power consumption of STAs supporting SMPS, because they are capable to switch the mode to dynamic or static either at the end of frame sequence or by using SMPS action frame. Signed-off-by: Peter Oh <poh@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | wil6210: fix a warning message conditionDan Carpenter2015-12-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "iter" is -1 at the end of the loop and not zero. It means we don't print a warning message. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | ath9k_htc: fix handling return value of ath9k_hw_calibrateAndrzej Hajda2015-12-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function can return negative values in case of error. Its result should be then tested for such case. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2046107 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | ath10k: reduce indentation by moving powersave check within functionRajkumar Manoharan2015-12-311-19/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For devices that does not support PCI power save, force wake up API is used. So move powersave check inside force wakeup to reduce one level indentation. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| | * | ath10k: wake up device before accessing registersRajkumar Manoharan2015-12-311-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 1aaf8efba0ae ("ath10k: disable PCI PS for QCA988X and QCA99X0") partially reverts pci soc powersave support added by commit 77258d409ce4 ("ath10k: enable pci soc powersaving"). While reverting the change, pci wake up function is called after accessing pci registers instead of prior to access. The assumption is that chip is woken up before accessing its registers.Though this change does not fix any known issues, this might help to avoid unknown or low power platform specific issues. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| * | | rt2x00pci: Disable memory-write-invalidate when the driver exitsJia-Ju Bai2016-01-071-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver calls pci_set_mwi to enable memory-write-invalidate when it is initialized, but does not call pci_clear_mwi when it is removed. Many other drivers calls pci_clear_mwi when pci_set_mwi is called, such as r8169, 8139cp and e1000. This patch adds pci_clear_mwi in error handling and removal procedure, which can fix the problem. Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | | brcmfmac: introduce module parameter to force successful probeArend van Spriel2016-01-073-1/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The module parameter can be used to ensure the probe succeeds thus claiming the device and allowing post-mortem debugging in case of firmware crash. It is only available when select CONFIG_BRCMDBG. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | | brcmfmac: Move all module parameters to one placeHante Meuleman2016-01-079-52/+144
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Module parameters are defined in several files. Move them in one place and make them device specific or global. This makes it easier to override device specific settings by external data like platform data in the future. Reviewed-by: Arend Van Spriel <arend@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>