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2014-05-22bonding: fix vlan_features computingMichal Kubeček
bond_compute_features() uses netdev_increment_features() to combine vlan_features of slaves into vlan_features of the bond. As netdev_increment_features() only adds most features and we start with BOND_VLAN_FEATURES, we can end up with features none of the slaves provided. If there is at least one slave, initialize vlan_features only with the flags in NETIF_F_ALL_FOR_ALL. Right now there is none in BOND_VLAN_FEATURES but stating it explicitely will make the code more future proof. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22vlan: more careful checksum features handlingMichal Kubeček
When combining real_dev's features and vlan_features, simple bitwise AND is used. This doesn't work well for checksum offloading features as if one set has NETIF_F_HW_CSUM and the other NETIF_F_IP_CSUM and/or NETIF_F_IPV6_CSUM, we end up with no checksum offloading. However, from the logical point of view (how can_checksum_protocol() works), NETIF_F_HW_CSUM contains the functionality of NETIF_F_IP_CSUM and NETIF_F_IPV6_CSUM so that the result should be IP/IPV6. Add helper function netdev_intersect_features() implementing this logic and use it in vlan_dev_fix_features(). Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: fec: correct the MDIO clock sourceNimrod Andy
Since imx serials FEC/ENET MDIO clock source is internal ipg clock, and "ahb" clock is defined as FEC/ENET bus clock, so the patch just correct the fec driver MDIO clock source. Signed-off-by: Fugang Duan <B38611@freescale.com> Acked-by: Frank Li <frank.li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: fec: optimize the clock management to save powerNimrod Andy
Add below clock management to save fec power: - After probe, disable all clocks incluing ipg, ahb, enet_out, ptp clock. - Open ethx interface enable necessary clocks. Close ethx interface disable all clocks. The patch also encapsulates the all enet clocks enable/disable to .fec_enet_clk_enable(), which can reduce the repetitional code in driver. Signed-off-by: Fugang Duan <B38611@freescale.com> Acked-by: Frank Li <Frank.li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22Merge branch 'sw_tso'David S. Miller
Ezequiel Garcia says: ==================== net: Introduce a software TSO helper API Here's a first proposal for a generic software TSO helper API, following David's suggestion. There are at least two drivers that currently implement some form of software TSO: Solarflare network driver (drivers/net/ethernet/sfc) and Tilera GX network driver (drivers/net/ethernet/tile/tilegx.c). The rationale behind adding a generic API is to provide a boiler plate with the segmentation and other common tasks, making this support easier to add in other drivers. When designing the API, I've considered mainly two design choices: 1. Implement a series of callbacks that each driver would implement and the net core code would call to fill in descriptors and egress that data. 2. Implement an API for drivers to use in a driver's specific tx_tso function. This functions would exhaust a sk_buff payload, and use the API as helper for building the headers and segmented data. I've chosen (2), to avoid function pointers (which was Willy's concern) and because it seemed less fragile. Of course, this is argueable. The API is by no means complete, and lacks some features, however it allows to support TSO in mv643xx_eth and mvneta network drivers with some very good performance results. I've added this support as an example of the API in action. In particular the following needs some revisiting: 1. IPv6 support is lacking. 2. The required descriptor counting needs some verification. The current implementation might be too "sketchy". The tilegx one can be a good starting point. 3. The implemenation assumes the hardware can compute the TCP and IP checksums for the built headers. However, some controllers may need some initial calculation (such as tilegx, for instance). Despite this, I hope this proposal is good enough to trigger some discussion and to check if I'm on the right track. Feedback is much appreciated! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: mv643xx_eth: Implement software TSOEzequiel Garcia
Now that the TSO helper API has been introduced, this commit makes use of it to add support for software TSO in this driver. This feature allows to improve outbound throughput performance significantly. Running iperf tests shows a 30% improvement, tested on a Kirkwood Openblocks A6 board. $ ethtool -K eth0 tso off $ iperf -c 192.168.0.45 -t 3 ------------------------------------------------------------ Client connecting to 192.168.0.45, TCP port 5001 TCP window size: 43.8 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.0.159 port 46389 connected with 192.168.0.45 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 3.0 sec 217 MBytes 607 Mbits/sec $ ethtool -K eth0 tso on $ iperf -c 192.168.0.45 -t 3 ------------------------------------------------------------ Client connecting to 192.168.0.45, TCP port 5001 TCP window size: 43.8 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.0.159 port 46390 connected with 192.168.0.45 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 3.0 sec 336 MBytes 938 Mbits/sec This commit is just an example of the usage of the TSO API, it works fine but needs some more work. In particular, the descriptor unmapping path must avoid unmapping the TSO headers. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: mv643xx_eth: Use dma_map_single() to map the skb fragmentsEzequiel Garcia
Using dma_map_single() instead of skb_frag_dma_map() allows to unmap all the descriptors using dma_unmap_single(). This change allows to introduce software TSO in a less intrusive way. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: mv643xx_eth: Factorize feature settingEzequiel Garcia
In order to ease the addition of new features, let's factorize the feature list. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: mv643xx_eth: Avoid setting the initial TCP checksumEzequiel Garcia
As specified in the datasheet, the driver can set the "L4Chk_Mode" flag (bit 10) in the Tx descriptor command/status to specify that a frame is not IP fragmented and that the controller is in charge of generating the TCP/IP checksum. This must be used together with the "GL4chk" flag (bit 17). These two flags allow to avoid setting the initial TCP checksum in the l4i_chk field of the Tx descriptor, which is needed to support software TSO. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: mv643xx_eth: Factorize initial checksum and command preparationEzequiel Garcia
Make the code more readable by moving the initial checksum setup and the command/status preparation to its own function. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: mvneta: Implement software TSOEzequiel Garcia
Now that the TSO helper API has been introduced, this commit makes use of it to implement the TSO in this driver. Using iperf to test and vmstat to check the CPU usage, shows a substantial CPU usage drop when TSO is on (~15% vs. ~25%). HTTP-based tests performed by Willy Tarreau have shown performance improvements. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: mvneta: Clean mvneta_tx() sk_buff handlingEzequiel Garcia
Rework mvneta_tx() so that the code that performs the final handling before a sk_buff is transmitted is done only if the numbers of fragments processed if positive. This is preparation work to add the support for software TSO. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: mvneta: Factorize feature settingEzequiel Garcia
In order to ease the addition of new features, let's factorize the feature list. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22net: Add a software TSO helper APIEzequiel Garcia
Although the implementation probably needs a lot of work, this initial API allows to implement software TSO in mvneta and mv643xx_eth drivers in a not so intrusive way. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22mwifiex: use 'const' qualifier for 2nd arg of mwifiex_tdls_add_ht_operJohn W. Linville
Fixes the following warning: CC drivers/net/wireless/mwifiex/tdls.o drivers/net/wireless/mwifiex/tdls.c: In function ‘mwifiex_prep_tdls_encap_data’: drivers/net/wireless/mwifiex/tdls.c:475:4: warning: passing argument 2 of ‘mwifiex_tdls_add_ht_oper’ discards ‘const’ qualifier from pointer target type [enabled by default] ret = mwifiex_tdls_add_ht_oper(priv, peer, 1, skb); ^ drivers/net/wireless/mwifiex/tdls.c:190:1: note: expected ‘u8 *’ but argument is of type ‘const u8 *’ mwifiex_tdls_add_ht_oper(struct mwifiex_private *priv, u8 *mac, ^ drivers/net/wireless/mwifiex/tdls.c:481:4: warning: passing argument 2 of ‘mwifiex_tdls_add_ht_oper’ discards ‘const’ qualifier from pointer target type [enabled by default] ret = mwifiex_tdls_add_ht_oper(priv, peer, 0, skb); ^ drivers/net/wireless/mwifiex/tdls.c:190:1: note: expected ‘u8 *’ but argument is of type ‘const u8 *’ mwifiex_tdls_add_ht_oper(struct mwifiex_private *priv, u8 *mac, ^ Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22ath9k: fix sleep timer during suspendRajkumar Manoharan
On idle state, sleep timer is scheduled to put the chip into fullsleep. But during suspend, this timer is scheduled after the chip is moved to fullsleep forcibily. This is causing below unnecessary error messages in kernel log during suspend. ath: phy2: timeout (100000 us) on reg 0x806c: 0xdeadbeef & 0x01f00000 != 0x00000000 ath: phy2: RX failed to go idle in 10 ms RXSM=0xdeadbeef ath: phy2: DMA failed to stop in 10 ms AR_CR=0xdeadbeef AR_DIAG_SW=0xdeadbeef DMADBG_7=0xdeadbeef Reported-by: Arkh4mKn1ght <arkh4mkn1ght@gmail.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22ath9k: Handle multiple keys while setting tx filtersRajkumar Manoharan
The keycache index is used to abort transmission for given station when it goes to sleep state. But the commit "ath9k_hw: Abort transmission for sleeping station" is not handling multi-key station. Fix that. Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22mwifiex: update seq number correctly for packets from TDLS peerAvinash Patil
This patch adds handling of updating rx sequence number for packets received from TDLS peer. Current implementation of mwifiex_queueing_ra_based assumes station would always receive packets from AP which is not true in case of TDLS. Fix this by adding this case. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22mwifiex: set TDLS flags for AMSDU packetsAvinash Patil
This patch fixes an issue where AMSDU packets for TDLS link would flow over infra link. This happened because we were missing setting TDLS flag in TxPD on AMSDU packets. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22mwifiex: delete TDLS link upon Teardown eventAvinash Patil
If userspace application does not take care of TDLS teardown event, TDLS link would be present in driver database and thus driver would send such packets on direct link while peer has already severed link causing data traffic failure. Disable TDLS link upon teardown event so as to ensure this does not happen. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22mwifiex: silence TDLS link delete failure for nonexistent linkAvinash Patil
If TDLS link delete command fails because of non-existent peer or TDLS peer is absent from driver's entry, it means link was already deleted. In such case print debug messages with lower severity. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22mwifiex: avoid TDLS check for packets destined to APAvinash Patil
In station role if TDLS is supported, we traverse TDLS peer list to see if packet's destination address matches with TDLS peer. Packets destined to AP are not sent over TDLS link and hence avoid this list traversal for such packets. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22ath9k: fix build error with disabled debugZefir Kurtisi
DFS pulse interval printing is only available when CONFIG_ATH9K_DEBUGFS is set. Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22b43: N-PHY: add missing calib values for radio 0x2026 rev 11Rafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22b43: fix list of 5 GHz channels for 802.11n cardsRafał Miłecki
Broadcom hardware uses a bit tricky hw_value-s for 5 GHz channels, values 184-228 are used for 4920-5140 MHz center frequencies. Normally you expect channels 7-16 (e.g. 5060 MHz is channel 12, not 212). We never meant to register hw_value 228 with freq 6140 MHz (5000 + 228 * 5). Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22b43: fix typo in define name for 2 GHz channels (s/CHAN4G/CHAN2G/)Rafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22libertas: fix return value when processing invalid packetDan Williams
Nothing actually uses the return value yet, but we might as well make it correct, like process_rxed_802_11_packet() does for the same case. Also ensure that if monitor mode is enabled (and thus process_rxed_802_11_packet() is called) that the debugging enter/leave functions are balanced. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22rt2x00: Endless loop on hub port power downRichard Genoud
I've met an endless (or at least very long) loop if I power down the usb port on witch a usb wifi key is plugged. (Ok, it's not very smart to power down a usb port when a usb key is in used... but still, I think that should not lead to an endless loop). I have a lot of: ieee80211 phy1: rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x0438 with error -71 (-71==-EPROTO) How to reproduce: - plug an usb wifi key - ip link set wlan0 up - hub-ctrl -b usb_bus -d usb_device -P usb_port -p 0 hub-ctrl source: https://github.com/codazoda/hub-ctrl.c/blob/master/hub-ctrl.c The following patch prevents the endless loop, but I'm really not sure that The Right Way To Do It (R) Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22carl9170: fix leaks at failure path in carl9170_usb_probe()Alexey Khoroshilov
carl9170_usb_probe() does not handle request_firmware_nowait() failure that leads to several leaks in this case. The patch adds all required deallocations. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
2014-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextJohn W. Linville
2014-05-22Merge tag 'nfc-next-3.16-1' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next Samuel Ortiz <sameo@linux.intel.com> says: "NFC: 3.16: First pull request This is the NFC pull request for 3.16. We have: - STMicroeectronics st21nfca support. The st21nfca is an HCI chipset and thus relies on the HCI stack. This submission provides support for tag redaer/writer mode (including Type 5) and device tree bindings. - PM runtime support and a bunch of bug fixes for TI's trf7970a. - Device tree support for NXP's pn544. Legacy platform data support is obviously kept intact. - NFC Tag type 4B support to the NFC Digital stack. - SOCK_RAW type support to the raw NFC socket, and allow NCI sniffing from that. This can be extended to report HCI frames and also proprietarry ones like e.g. the pn533 ones." Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-22Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
2014-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nftablesDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter/nftables updates for net-next The following patchset contains Netfilter/nftables updates for net-next, most relevantly they are: 1) Add set element update notification via netlink, from Arturo Borrero. 2) Put all object updates in one single message batch that is sent to kernel-space. Before this patch only rules where included in the batch. This series also introduces the generic transaction infrastructure so updates to all objects (tables, chains, rules and sets) are applied in an all-or-nothing fashion, these series from me. 3) Defer release of objects via call_rcu to reduce the time required to commit changes. The assumption is that all objects are destroyed in reverse order to ensure that dependencies betweem them are fulfilled (ie. rules and sets are destroyed first, then chains, and finally tables). 4) Allow to match by bridge port name, from Tomasz Bursztyka. This series include two patches to prepare this new feature. 5) Implement the proper set selection based on the characteristics of the data. The new infrastructure also allows you to specify your preferences in terms of memory and computational complexity so the underlying set type is also selected according to your needs, from Patrick McHardy. 6) Several cleanup patches for nft expressions, including one minor possible compilation breakage due to missing mark support, also from Patrick. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates This series contains updates to i40e and i40evf. Shannon makes minor changes to the AdminQ interface to bring it up to date. Removes the hard coding of stats struct size in ethtool, in prep for adding data fields which are configuration dependent. Catherine removes some unused and unneeded PCI bus defines. Jesse fixes the copyright headers and finishes up the removal of the PTP Tx work functionality which allows us to rely on the Tx timesync interrupt. Mitch provides a number of fixes and cleanups for i40e/i40evf based on suggestions from Ben Hutchings. First is to use a macro parameter for ethtool stats instead of just assuming that a valid netdev variable exists. Second is not to tell ethtool that the VF can do 10GbaseT, when it really has no idea what its link speed is, so set the supported value to 0 instead. Make the ethtool_ops structure constant since it is extremely unlikely to change at runtime. Ethtool consistently reports 0 values for our ITR settings because we never actually use them, so fix this by setting the default values to the specified default values. Greg avoids a compile error by wrapping the call to i40e_alloc_vfs() in CONFIG_PCI_IOV because the function itself is wrapped in the same conditional compile block. Alexander Gordeev updates the driver to use the new pci_enable_msi_range() and pci_enable_msix_range() or pci_enable_msi_exact() and pci_enable_msix_exact(). Jean Sacren provides a fix where the wrong error code was being passed to i40e_open(). ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22tcp: make cwnd-limited checks measurement-based, and gentlerNeal Cardwell
Experience with the recent e114a710aa50 ("tcp: fix cwnd limited checking to improve congestion control") has shown that there are common cases where that commit can cause cwnd to be much larger than necessary. This leads to TSO autosizing cooking skbs that are too large, among other things. The main problems seemed to be: (1) That commit attempted to predict the future behavior of the connection by looking at the write queue (if TSO or TSQ limit sending). That prediction sometimes overestimated future outstanding packets. (2) That commit always allowed cwnd to grow to twice the number of outstanding packets (even in congestion avoidance, where this is not needed). This commit improves both of these, by: (1) Switching to a measurement-based approach where we explicitly track the largest number of packets in flight during the past window ("max_packets_out"), and remember whether we were cwnd-limited at the moment we finished sending that flight. (2) Only allowing cwnd to grow to twice the number of outstanding packets ("max_packets_out") in slow start. In congestion avoidance mode we now only allow cwnd to grow if it was fully utilized. Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22cfg80211: allow RSSI compensationEmmanuel Grumbach
Channels in 2.4GHz band overlap, this means that if we send a probe request on channel 1 and then move to channel 2, we will hear the probe response on channel 2. In this case, the RSSI will be lower than if we had heard it on the channel on which it was sent (1 in this case). The firmware / low level driver can parse the channel in the DS IE or HT IE and compensate the RSSI so that it will still have a valid value even if we heard the frame on an adjacent channel. This can be done up to a certain offset. Add this offset as a configuration for the low level driver. A low level driver that can compensate the low RSSI in this case should assign the maximal offset for which the RSSI value is still valid. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-22iwlwifi: mvm: remove vif argument from power_update_macArik Nemtsov
The power update function looks at all current vifs to determine the power policy. It doesn't use the current vif. Instead the value was overwritten and used internally. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-22iwlwifi: mvm: make iwl_mvm_update_beacon_abort staticEmmanuel Grumbach
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-22iwlwifi: mvm: remove debugfs hook for reduced tx powerEmmanuel Grumbach
This was not used is unlikely to be used, just kill it. Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-22iwlwifi: mvm: disable reduced Tx power when not applicableEmmanuel Grumbach
I forgot to disable the reduced Tx power in a few paths. Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-22Merge branch 'drm-fixes-3.15' of ↵Dave Airlie
git://people.freedesktop.org/~deathsimple/linux into drm-fixes radeon fixes, VCE one is big but does fix a userspace crash. * 'drm-fixes-3.15' of git://people.freedesktop.org/~deathsimple/linux: drm/radeon/pm: don't allow debugfs/sysfs access when PX card is off (v2) drm/radeon: avoid segfault on device open when accel is not working. drm/radeon: fix typo in finding PLL params drm/radeon: fix register typo on si drm/radeon: fix buffer placement under memory pressure v2 drm/radeon: fix page directory update size estimation drm/radeon: handle non-VGA class pci devices with ATRM drm/radeon: fix DCE83 check for mullins drm/radeon: check VCE relocation buffer range v3 drm/radeon: also try GART for CPU accessed buffers
2014-05-22Merge branch 'drm-nouveau-next' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes fixes nasty panel bleeding bug. * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/gf119-/disp: fix nasty bug which can clobber SOR0's clock setup drm/nvd9/therm: handle another kind of PWM fan
2014-05-22Linux 3.15-rc6v3.15-rc6Linus Torvalds
2014-05-21ipv6: gro: fix CHECKSUM_COMPLETE supportEric Dumazet
When GRE support was added in linux-3.14, CHECKSUM_COMPLETE handling broke on GRE+IPv6 because we did not update/use the appropriate csum : GRO layer is supposed to use/update NAPI_GRO_CB(skb)->csum instead of skb->csum Tested using a GRE tunnel and IPv6 traffic. GRO aggregation now happens at the first level (ethernet device) instead of being done in gre tunnel. Native IPv6+TCP is still properly aggregated. Fixes: bf5a755f5e918 ("net-gre-gro: Add GRE support to the GRO stack") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jerry Chu <hkchu@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-21wimax/i2400m: make return of 0 explicitJulia Lawall
Delete unnecessary local variable whose value is always 0 and that hides the fact that the result is always 0. A simplified version of the semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression ret; expression e; position p; @@ -ret = 0; ... when != ret = e return - ret + 0 ; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-21net: filter: cleanup invocation of internal BPFAlexei Starovoitov
Kernel API for classic BPF socket filters is: sk_unattached_filter_create() - validate classic BPF, convert, JIT SK_RUN_FILTER() - run it sk_unattached_filter_destroy() - destroy socket filter Cleanup internal BPF kernel API as following: sk_filter_select_runtime() - final step of internal BPF creation. Try to JIT internal BPF program, if JIT is not available select interpreter SK_RUN_FILTER() - run it sk_filter_free() - free internal BPF program Disallow direct calls to BPF interpreter. Execution of the BPF program should be done with SK_RUN_FILTER() macro. Example of internal BPF create, run, destroy: struct sk_filter *fp; fp = kzalloc(sk_filter_size(prog_len), GFP_KERNEL); memcpy(fp->insni, prog, prog_len * sizeof(fp->insni[0])); fp->len = prog_len; sk_filter_select_runtime(fp); SK_RUN_FILTER(fp, ctx); sk_filter_free(fp); Sockets, seccomp, testsuite, tracing are using different ways to populate sk_filter, so first steps of program creation are not common. Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-21Merge branch 'enic-next'David S. Miller
Govindarajulu Varadarajan says: ==================== enic: Add adaptive coalescing interrupt support This series add support for adaptive coalescing interrupt and updates enic Maintainers. v1->v2: * Add commit log * do vnic_intr_coalescing_timer_set only while enabling intr * use ktime_get instead of hrtimer * make enic_set_rx_coal_setting return type void * change func name enic_apply_int_moderation to enic_calc_int_moderation ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-21MAINTAINERS: Update enic maintainersGovindarajulu Varadarajan
Cc: Sujith Sankar <ssujith@cisco.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Neel Patel <neepatel@cisco.com> Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-21enic: Add support for adaptive interrupt coalescingSujith Sankar
This patch adds support for adaptive interrupt coalescing. For small pkts with low pkt rate, we can decrease the coalescing interrupt dynamically which decreases the latency. This however increases the cpu utilization. Based on testing with different coal intr and pkt rate we came up with a table(mod_table) with rx_rate and coalescing interrupt value where we get low latency without significant increase in cpu. mod_table table stores the coalescing timer percentage value for different throughputs. Function enic_calc_int_moderation() calculates the desired coalescing intr timer value. This function is called in driver rx napi_poll. The actual value is set by enic_set_int_moderation() which is called when napi_poll is complete. i.e when we unmask the rx intr. Adaptive coal intr is support only when driver is using msix intr. Because intr is not shared. Struct mod_range is used to store only the default adaptive coalescing intr value. Adaptive coal intr calue is calculated by timer = range_start + ((rx_coal->range_end - range_start) * mod_table[index].range_percent / 100); rx_coal->range_end is the rx-usecs-high value set using ethtool. range_start is rx-usecs-low, set using ethtool, if rx_small_pkt_bytes_cnt is greater than 2 * rx_large_pkt_bytes_cnt. i.e small pkts are dominant. Else its rx-usecs-low + 3. Cc: Christian Benvenuti <benve@cisco.com> Cc: Neel Patel <neepatel@cisco.com> Signed-off-by: Sujith Sankar <ssujith@cisco.com> Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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