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| | * iwlwifi: mvm: add debug print if scan config is ignoredMax Stepanov2016-02-011-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | Print a debug message in iwl_mvm_config_scan() if a scan configuration data is decided not to be sent to FW. Signed-off-by: Max Stepanov <Max.Stepanov@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: change access to ieee80211_hdrSara Sharon2016-02-011-1/+1
| | | | | | | | | | | | | | | | | | | | | Make the code clearer. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: support setting minimum quota from debugfsJohannes Berg2016-02-013-0/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | For debug purposes, allow setting minimum quota (for a single virtual interface) from debugfs. This is an absolute minimum, so it can only be set up to 95%. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: track low-latency sources separatelyJohannes Berg2016-02-013-14/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To be able to test low-latency behaviour properly, split the different low-latency sources so that setting any one of them, for example from debugfs, is sufficient; this avoids getting the debug setting overwritten by other sources. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: support beacon storingSara Sharon2016-02-018-14/+120
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently firmware is configured to filter out beacons. In case a beacon was changed - it is waking the host. However, some vendors change their IEs frequently without any significant change, and redundant wakeups are triggered as a result. As a solution disable beacon filtering when entering d0i3. Instead, firmware will store the latest beacon and upon exiting d0i3 it will send it up to the host, so the host can act upon changes (if there were any). This beacon will arrive as a dedicated notification - support it as well. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: add support for negative temperaturesChaya Rachel Ivgi2016-02-013-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver should support also negative temperatures. So there is a need to separate between the return value and temperature in order to be able to distinguish between a negative temperature and error value. Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: fix debugfs signedness warningJohannes Berg2016-02-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Using kstrtouint() with a signed int isn't really right, use kstrotoint() instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: remove shadowing variableJohannes Berg2016-02-011-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | The outer scope has a perfectly suitable 'i' variable, use it instead of adding a shadowing one in the inner scope. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: make collecting fw debug data optionalGolan Ben-Ami2016-02-012-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | Slow platforms may have issues with dumping data upon firmware assert. Make it easier to disable it for those platform. Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: Add P2P client snoozingAvri Altman2016-02-014-3/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable snoozing and U-APSD on P2P client. The firwmare will support this only if the BSS vif is not associated. Make this configurable by a constant variable and disable it by default. Signed-off-by: Avri Altman <avri.altman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: mvm: add trigger for firmware dump upon TX response statusGolan Ben-Ami2016-02-013-0/+49
| | | | | | | | | | | | | | | | | | | | | | | | This will allow to collect the data when the firmware sends a specific tx response status. Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: Document missing module optionsRodrigo Freire2016-02-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | This patch documents two missing module options in the internal code comment block. Signed-off-by: Rodrigo Freire <rfreire@redhat.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: dvm: handle zero brightness for wifi LEDHubert Tarasiuk2016-02-011-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to have the LED being OFF constantly when the brightness is set to 0, we need to pass IWL_LED_SOLID to iwl_led_cmd as the off parameter, otherwise the led will stay on constantly. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=110551 Signed-off-by: Hubert Tarasiuk <hubert.tarasiuk@gmail.com> [reworked the commit message] Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * iwlwifi: various comments and code cleanupsEmmanuel Grumbach2016-02-014-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | No need to include net/ip6_checksum.h twice. Remove TODOs. Remove trailing space. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
| | * 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>
| * | mwifiex: use SYNC flag for canceling host sleepAmitkumar Karwar2016-01-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Host sleep is cancelled in sdio resume() handler. Cfg80211's resume handler is immediately called after this. SYNC flag here ensures that host sleep handshake gets completed and we have valid "adapter->nd_config" before we report host wakeup reason in cfg80211's resume handler. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: add RSSI support for net-detectGanapathi Bhat2016-01-293-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for waking up the device on finding better RSSI. Threshold RSSI value will be configured by application. Signed-off-by: Ganapathi Bhat <gbhat@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: report wakeup reason to cfg80211chunfan chen2016-01-298-0/+139
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds code to report wakeup reason to cfg80211 when system is resumed. Signed-off-by: chunfan chen <jeffc@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: add wowlan net-detect supportchunfan chen2016-01-296-17/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for wakeup when configured network is detected. Signed-off-by: chunfan chen <jeffc@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Xinming Hu <huxm@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: add wowlan info messageschunfan chen2016-01-291-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds informative messages in wake up on magic packet, disconnect, pattern configuration paths. Signed-off-by: chunfan chen <jeffc@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: add schedule scan supportXinming Hu2016-01-2910-0/+493
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch add sched scan support for mwifiex, include cfg80211 sched_scan_start/sched_scan_stop handler, corresponding bgscan command path and event handler. Signed-off-by: Xinming Hu <huxm@marvell.com> Signed-off-by: chunfan chen <jeffc@marvell.com> Signed-off-by: Cathy Luo <cluo@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: fix power state out of sync problemShengzhen Li2016-01-291-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's been observed that driver's power state goes out of sync with firmware in some corner cases. When this happens, driver tries to download the data to firmware assuming it's awake which causes Tx data timeout. Main thread will process interrupt as soon as interrupt handler fills 'int_status' variable. This patch fixes the race issue by updating 'int_status' at the end of mwifiex_interrupt_status(). Signed-off-by: Shengzhen Li <szli@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: enable pcie MSIx interrupt mode supportXinming Hu2016-01-292-28/+176
| | | | | | | | | | | | | | | | | | | | | | | | | | | Newer pcie chipsets (8997 onwards) support MSIx. This patch enables it. Signed-off-by: Xinming Hu <huxm@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | wlcore: fix error handling in wlcore_event_fw_loggerAndrzej Hajda2016-01-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | wlcore_read/wlcore_write can return negative values so it should be assigned to signed variable. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2120705 Fixes: 3719c17e1816 ("wlcore/wl18xx: fw logger over sdio") Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: add debugfs file to read chip informationXinming Hu2016-01-294-4/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch add 'verext' debugfs item, which can be used to get detailed chip specific information from our firmware. Examples: echo "1" > /sys/kernel/debug/mwifiex/mlan0/verext cat /sys/kernel/debug/mwifiex/mlan0/verext Signed-off-by: Shengzhen Li <szli@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: fix IBSS data path issue.chunfan chen2016-01-292-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The port_open flag is not applicable for IBSS mode. IBSS data path was broken when port_open flag was introduced. This patch fixes the problem by correcting the checks. Fixes: 5c8946330abfa4c ("mwifiex: enable traffic only when port is open") Signed-off-by: chunfan chen <jeffc@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | mwifiex: firmware download enhancementschunfan chen2016-01-295-35/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Same chip is being used by WLAN as well as bluetooth drivers. Each driver needs to check during initialisation if firmware is already active or it needs to be freshly downloaded. If one driver has started downloading the firmware, other finds the winner flag as false. mwifiex_check_fw_status() checks firmware status and also check if WLAN is the winner for firmware downloading. Once we detect that other interface is downloading the firmware, we call this routine again with max poll count to wait until firmware is ready. This patch splits the routine to avoid checking winner status unnecessarily multiple times and ensures that correct messages are displayed to user. Firmware status poll count is also increased to 150. Signed-off-by: Chunfan Chen <jeffc@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | wlcore/wl12xx: spi: add device tree supportUri Mashiach2016-01-293-5/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add DT support for the wl1271 SPI WiFi. Add documentation file for the wl1271 SPI WiFi. Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il> Acked-by: Rob Herring <robh@kernel.org> Tested-By: Sebastian Reichel <sre@kernel.org> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| * | wlcore/wl12xx: spi: add power operation functionUri Mashiach2016-01-291-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The power function uses a consumer regulator access to update the WiFi enable GPIO value. Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il> Tested-By: Sebastian Reichel <sre@kernel.org> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
* | | net: phy: spi_ks8995: include linux/gpio/consumer.hArnd Bergmann2016-02-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ks8995 phy driver just started using gpiod_* functions, which are declared in linux/gpio/consumer.h, not linux/gpio.h, resulting in a build failure in randconfig builds that do not have CONFIG_GPIOLIB enabled: drivers/net/phy/spi_ks8995.c: In function 'ks8995_probe': drivers/net/phy/spi_ks8995.c:477:3: error: implicit declaration of function 'gpiod_set_value' [-Werror=implicit-function-declaration] This changes the header inclusion so it builds in all configurations. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: cd6f288cbaab ("net: phy: spi_ks8995: add support for resetting switch using GPIO") Signed-off-by: David S. Miller <davem@davemloft.net>
* | | tcp: add tcpi_min_rtt and tcpi_notsent_bytes to tcp_infoEric Dumazet2016-02-162-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tcpi_min_rtt reports the minimal rtt observed by TCP stack for the flow, in usec unit. Might be ~0U if not yet known. tcpi_notsent_bytes reports the amount of bytes in the write queue that were not yet sent. This is done in a single patch to not add a temporary 32bit padding hole in tcp_info. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'unified-tunnel-dst-caching'David S. Miller2016-02-1621-208/+429
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Paolo Abeni says: ==================== net: unify dst caching for tunnel devices This patch series try to unify the dst cache implementations currently present in the kernel, namely in ip_tunnel.c and ip6_tunnel.c, introducing a new generic implementation, replacing the existing ones, and then using the new implementation in other tunnel devices which currently lack it. The new dst implementation is compiled, as built-in, only if any device using it is enabled. Caching the dst for the tunnel remote address gives small, but measurable, performance improvement when tunneling over ipv4 (in the 2%-4% range) and significant ones when tunneling over ipv6 (roughly 60% when no fragmentation/segmentation take place and the tunnel local address is not specified). v2: - move the vxlan dst_cache usage inside the device lookup functions - fix usage after free for lwt tunnel moving the dst cache storage inside the dst_metadata, - sparse codying style cleanup ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net/ipv4: add dst cache support for gre lwtunnelsPaolo Abeni2016-02-161-3/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of UDP traffic with datagram length below MTU this gives about 4% performance increase Signed-off-by: Paolo Abeni <pabeni@redhat.com> Suggested-and-Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | geneve: add dst caching supportPaolo Abeni2016-02-161-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | use generic dst implementation for both plain geneve devices and lwtunnels. In case of UDP traffic with datagram length below MTU this give about 2% performance increase for plain geneve tunnel over ipv4, about 65% performance increase for ipv6 tunnel. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Suggested-and-Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: add dst_cache to ovs vxlan lwtunnelPaolo Abeni2016-02-166-8/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of UDP traffic with datagram length below MTU this give about 2% performance increase when tunneling over ipv4 and about 60% when tunneling over ipv6 Signed-off-by: Paolo Abeni <pabeni@redhat.com> Suggested-and-acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: use dst_cache for vxlan devicePaolo Abeni2016-02-162-8/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of UDP traffic with datagram length below MTU this give about 3% performance increase when tunneling over ipv4 and about 70% when tunneling over ipv6. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Suggested-and-acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | ip_tunnel: replace dst_cache with generic implementationPaolo Abeni2016-02-164-80/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current ip_tunnel cache implementation is prone to a race that will cause the wrong dst to be cached on cuncurrent dst cache miss and ip tunnel update via netlink. Replacing with the generic implementation fix the issue. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Suggested-and-acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: replace dst_cache ip6_tunnel implementation with the generic onePaolo Abeni2016-02-165-116/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This also fix a potential race into the existing tunnel code, which could lead to the wrong dst to be permanenty cached: CPU1: CPU2: <xmit on ip6_tunnel> <cache lookup fails> dst = ip6_route_output(...) <tunnel params are changed via nl> dst_cache_reset() // no effect, // the cache is empty dst_cache_set() // the wrong dst // is permanenty stored // into the cache With the new dst implementation the above race is not possible since the first cache lookup after dst_cache_reset will fail due to the timestamp check Signed-off-by: Paolo Abeni <pabeni@redhat.com> Suggested-and-acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: add dst_cache supportPaolo Abeni2016-02-164-0/+270
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch add a generic, lockless dst cache implementation. The need for lock is avoided updating the dst cache fields only in per cpu scope, and requiring that the cache manipulation functions are invoked with the local bh disabled. The refresh_ts and reset_ts fields are used to ensure the cache consistency in case of cuncurrent cache update (dst_cache_set*) and reset operation (dst_cache_reset). Consider the following scenario: CPU1: CPU2: <cache lookup with emtpy cache: it fails> <get dst via uncached route lookup> <related configuration changes> dst_cache_reset() dst_cache_set() The dst entry set passed to dst_cache_set() should not be used for later dst cache lookup, because it's obtained using old configuration values. Since the refresh_ts is updated only on dst_cache lookup, the cached value in the above scenario will be discarded on the next lookup. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Suggested-and-acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'bnx2x-next'David S. Miller2016-02-167-76/+201
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Yuval Mintz says: ==================== bnx2x: driver updates This series contains several changes - the biggest change is the addition of Geneve NDO support [allows device to perform RSS according to inner-headers of encapsulated packet, similar to what it does for vxlan]. It also extends dcbx support, as well as introducing some minor changes. Dave, Please consider applying this series to `net-next'. [Do notice patch #3 fails checkpatch due to consistency with existing HSI] ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | bnx2x: Warn about grc timeouts in register dumpYuval Mintz2016-02-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are several scenarios where taking a register dump from a device might log benign GRC timeout attentions to system logs. Most common of those is when taking the dump from a 2-port device. Sadly, there's no easy way to mask the problematic attentions during the flow - Changing this behvaior would require a firmware update. For now, simply warn users to ignore the warnings. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | bnx2x: extend DCBx supportYuval Mintz2016-02-162-15/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for default application priority. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | bnx2x: Add support for single-port DCBxYuval Mintz2016-02-161-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Driver is currently looking at shared information for determining whether DCBx can be supported for a given port. On 4-port devices, up-to-date management firmware can support DCBx on each port of a given engine independently - but that would cause bnx2x to misinterpert the support and assume DCBx is supported on both. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | bnx2x: Add Geneve inner-RSS supportYuval Mintz2016-02-163-59/+146
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the ability to perform RSS hashing based on encapsulated headers for a geneve-encapsulated packet. This also changes the Vxlan implementation in bnx2x to be uniform for both vxlan and geneve [from configuration perspective]. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | bnx2x: Remove unneccessary EXPORT_SYMBOLYuval Mintz2016-02-161-1/+0
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | bnx2x_schedule_sp_rtnl is exported by bnx2x, although no other module uses it. Reported-by: Benjamin Poirier <bpoirier@suse.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-07 20:24:47 +0000