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2013-11-08drm/nouveau/mc: bracket interrupt handler with NV_PMC_INTR_EN disable/re-enableBen Skeggs
This looks to be what NVIDIA do pretty much everywhere, since forever. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/mc: have single entry and exit points to the interrupt handlerBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/mc: msi rearm write via subdev, not deviceBen Skeggs
This way we can catch it with debugging on for PMC subdev. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/device: use an additional bit from NV_PMC_BOOT_0 to identify chipsetBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/bios/init: return failure condition on invalid opcodesBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv31/mpeg: remove need for separate refcnt on engine useBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/therm: ack any pending IRQ at initMartin Peres
This is safe because ptherm hasn't been configured yet and will be a little further down the initialization path. Ptherm should be safe regarding to runtime reconfiguration. v2: - do not limit this patch to nv84-a3 and make it nv84+ v3: - move the ack to fini() - disable IRQs on fini() - silently ignore un-requested IRQs Signed-off-by: Martin Peres <martin.peres@labri.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv31/mpeg: split the nv31 and nv40 dma setting implementationsIlia Mirkin
NV31 has different config bits than NV40+ do. Also fix the DMA_IMAGE VRAM-only setting to check the right bits. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv31/mpeg: store chan singleton in engine, use it for dispatchIlia Mirkin
This makes nv31+ able to actually perform the nv_call, since previously the inst was not available. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv40/mpeg: use the nv31-provided classesIlia Mirkin
Since nv40 only covers pre-nv44 now, it can use the nv31-provided functions. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv44/mpeg: create a copy of the nv31/nv40 implsIlia Mirkin
The nv31/nv40 impls are actually fairly nv44-specific, since they assume the presence of the instance register/context switching. Create a copy before nv31/nv40 get fixed. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv31/mpeg: no need to set compat mode differently for nv44 grIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv10/kms: add plane support for nv10-nv40Ilia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv10: fix chipset checks, mostly for the benefit of nv1aIlia Mirkin
NV1A is numerically higher than NV17 but generationally lower. Use the new card type to help disambiguate. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv10: introduce a new NV_11 card typeIlia Mirkin
NV11/17/1F/18 come after NV10/15/16/1A. In order to facilitate using numerical comparisons, split up the two sets into different card types. This change should be a no-op except that the relevant cards will see NV11 printed instead of NV10 for the family. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau: fix backlight mask on ppc powerbookIlia Mirkin
This code was originally moved to using nv_mask by d31e078d84. This should not have any actual effect since the mask isn't applied to the value. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau: remove prototype for non-existent nouveau_connector_bppIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/vic: rename PUNK1C1 to PVICBen Skeggs
NVIDIA's name for what rnndb calls PVCOMP. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/therm: kill some over-zealous debuggingBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/core: split lock into list+exec and enable refcount locksBen Skeggs
This fixes a reported locking inversion when interacting with the DRM core's vblank routines. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/core: convert event handler apis to split create/enable semanticsBen Skeggs
This is a necessary step towards being able to work with the insane locking requirements of the DRM core's vblank routines, and a nice cleanup as a side-effect. This is similar in spirit to the interfaces that Peter Hurley arrived at with his nouveau_event rcu conversion series. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv50-/sw: share engine/channel constructor between implementationsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/sw: prepare for the sharing of constructors between implementationsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv50-/sw: make vblank tracking data private to the implementationsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nv50-/sw: share engine/channel struct definitions between implementationsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/core: Allow asymmetric nouveau_event_get/_putPeter Hurley
Most nouveau event handlers have storage in 'static' containers (structures with lifetimes nearly equivalent to the drm_device), but are dangerously reused via nouveau_event_get/_put. For example, if nouveau_event_get is called more than once for a given handler, the event handler list will be corrupted. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/core: Move event index check from critical sectionPeter Hurley
The index_nr field is constant for the lifetime of the event, so serialized access is unnecessary. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau/core: Add priv field for event handlersPeter Hurley
Provide private field for event handlers exclusive use. Convert nouveau_fence_wait_uevent() and nouveau_fence_wait_uevent_handler(); drop struct nouveau_fence_uevent. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau: off by one in nouveau_drm_vblank_enable()Dan Carpenter
The test here should be ">= ARRAY_SIZE()" instead of "> ARRAY_SIZE()". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08drm/nouveau: remove pointless assignmentDave Jones
self-assignment of a variable doesn't make a lot of sense. Signed-off-by: Dave Jones <davej@fedoraproject.org> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-11-08ext4: use prandom_u32() instead of get_random_bytes()Theodore Ts'o
Many of the uses of get_random_bytes() do not actually need cryptographically secure random numbers. Replace those uses with a call to prandom_u32(), which is faster and which doesn't consume entropy from the /dev/random driver. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2013-11-08f2fs: fix memory leak after kobject init failed in fill_superChao Yu
If we failed to init&add kobject when fill_super, stats info and proc object of f2fs will not be released. We should free them before we finish fill_super. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-11-08f2fs: cleanup waiting routine for writeback pages in cpChangman Lee
use genernal method supported by kernel o changes from v1 If any waiter exists at end io, wake up it. Signed-off-by: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-11-07ext4: remove unreachable code after ext4_can_extents_be_merged()Eric Sandeen
Commit ec22ba8e ("ext4: disable merging of uninitialized extents") ensured that if either extent under consideration is uninit, we decline to merge, and ext4_can_extents_be_merged() returns false. So there is no need for the caller to then test whether the extent under consideration is unitialized; if it were, we wouldn't have gotten that far. The comments were also inaccurate; ext4_can_extents_be_merged() no longer XORs the states, it fails if *either* is uninit. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
2013-11-07Merge branch 'pskb_put'David S. Miller
Mathias Krause says: ==================== move pskb_put (was: IPsec improvements) This series moves pskb_put() to the core code, making the code duplication in caif obsolete (patches 1 and 2). Patch 3 fixes a few kernel-doc issues. v2 of this series does no longer contain the skb_cow_data() patch and therefore no performance improvements for IPsec. The change is still under discussion, but otherwise independent from the above changes. Please apply! v2: - kernel-doc fixes for pskb_put, as noticed by Ben - dropped skb_cow_data patch as it's still discussed - added a kernel-doc fixes patch (patch 3) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net: skbuff - kernel-doc fixesMathias Krause
Use "@" to refer to parameters in the kernel-doc description. According to Documentation/kernel-doc-nano-HOWTO.txt "&" shall be used to refer to structures only. Signed-off-by: Mathias Krause <mathias.krause@secunet.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07caif: use pskb_put() instead of reimplementing its functionalityMathias Krause
Also remove the warning for fragmented packets -- skb_cow_data() will linearize the buffer, removing all fragments. Signed-off-by: Mathias Krause <mathias.krause@secunet.com> Cc: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net: move pskb_put() to core codeMathias Krause
This function has usage beside IPsec so move it to the core skbuff code. While doing so, give it some documentation and change its return type to 'unsigned char *' to be in line with skb_put(). Signed-off-by: Mathias Krause <mathias.krause@secunet.com> Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net: calxedaxgmac: Fix panic caused by MTU change of active interfaceAndreas Herrmann
Changing MTU size of an xgmac network interface while it is active can cause a panic like skbuff: skb_over_panic: text:c03bc62c len:1090 put:1090 head:edfb6900 data:edfb6942 tail:0xedfb6d84 end:0xedfb6bc0 dev:eth0 ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:126! Internal error: Oops - BUG: 0 [#1] SMP ARM Modules linked in: CPU: 0 PID: 762 Comm: python Tainted: G W 3.10.0-00015-g3e33cd7 #309 task: edcfe000 ti: ed67e000 task.ti: ed67e000 PC is at skb_panic+0x64/0x70 LR is at wake_up_klogd+0x5c/0x68 This happens because xgmac_change_mtu modifies dev->mtu before the network interface is quiesced. And thus there still might be buffers in use which have a buffer size based on the old MTU. To fix this I moved the change of dev->mtu after the call to xgmac_stop. Another modification is required (in xgmac_stop) to ensure that xgmac_xmit is really not called anymore (xgmac_tx_complete might wake up the queue again). I've tested the fix by switching MTU size every second between 600 and 1500 while network traffic was going on. The test box survived a test of several hours (until I've stopped it) whereas w/o this fix above panic occurs after several minutes (at most). Change since v1: - remove call to netif_stop_queue at beginning of xgmac_stop - use netif_tx_disable instead of locking+netif_stop_queue Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07Merge branch 'mlx4'David S. Miller
Amir Vadai says: ==================== net/mlx4: Mellanox driver update 07-11-2013 This patchset contains some enhancements and bug fixes for the mlx4_* drivers. Patchset was applied and tested against commit: "9bb8ca8 virtio-net: switch to use XPS to choose txq" ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net/mlx4_en: Datapath structures are allocated per NUMA nodeEugenia Emantayev
For each RX/TX ring and its CQ, allocation is done on a NUMA node that corresponds to the core that the data structure should operate on. The assumption is that the core number is reflected by the ring index. The affected allocations are the ring/CQ data structures, the TX/RX info and the shared HW/SW buffer. For TX rings, each core has rings of all UPs. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net/mlx4_core: ICM pages are allocated on device NUMA nodeEugenia Emantayev
This is done to optimize FW/HW access to host memory. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net/mlx4_en: Datapath resources allocated dynamicallyEugenia Emantayev
Currently all TX/RX rings and completion queues are part of the netdev priv structure and are allocated statically. This patch will change the priv to hold only arrays of pointers and therefore all TX/RX rings and completetion queues will be allocated dynamically. This is in preparation for NUMA aware allocations. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net/mlx4_core: Add immediate activate for VGT->VST->VGTRony Efraim
Allow immediate activate of VGT->VST and VST->VGT transitions, without the need of rebinding in mlx4_master_immediate_activate_vlan_qos(). Also in struct res_qp: add qp parameters (vlan_index,fvl,vlan_cntrol..) to the saved set, in order to restore when move to VGT. - Clear at mlx4_RST2INIT_QP_wrapper() - Save at mlx4_INIT2RTR_QP_wrapper() - Restore at mlx4_vf_immed_vlan_work_handler() Update mlx4_vf_immed_vlan_work_handler() to support VGT. Signed-off-by: Rony Efraim <ronye@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net/mlx4_core: Initialize all mailbox buffers to zero before useJack Morgenstein
To guarantee that all unused fields in all FW commands for both inboxes and outboxes are zeroed out, initialize the mailbox buffer to all zeroes. This is especially important for SRIOV comm-channel virtual commands (such as QUERY_FUNC_CAP), where if new fields are added to support new features, the driver can depend on older kernels passing zeroes in these fields. In addition to zeroing out the mailbox buffer at allocation time, all (now unnecessary) calls to memset by the callers of mlx4_alloc_cmd_mailbox() are removed. Signed-off-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net/mlx4_en: Add RFS support in UDPEyal Perry
Modify RFS code to support applying filters for incoming UDP streams. Signed-off-by: Eyal Perry <eyalpe@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07Merge branch 'macvlan_hwaccel'David S. Miller
John Fastabend says: ==================== l2 hardware accelerated macvlans This patch adds support to offload macvlan net_devices to the hardware. With these patches packets are pushed to the macvlan net_device directly and do not pass through the lower dev. The patches here have made it through multiple iterations each with a slightly different focus. First I tried to push these as a new link type called "VMDQ". The patches shown here, http://comments.gmane.org/gmane.linux.network/237617 Following this implementation I renamed the link type "VSI" and addressed various comments. Finally Neil Horman picked up the patches and integrated the offload into the macvlan code. Here, http://permalink.gmane.org/gmane.linux.network/285658 The attached series is clean-up of his patches, with a few fixes. If folks find this series acceptable there are a few items we can work on next. First broadcast and multicast will use the hardware even for local traffic with this series. It would be best (I think) to use the software path for macvlan to macvlan traffic and save the PCIe bus. This depends on how much you value CPU time vs PCIE bandwidth. This will need another patch series to flush out. Also this series only allows for layer 2 mac forwarding where some hardware supports more interesting forwarding capabilities. Integrating with OVS may be useful here. As always any comments/feedback welcome. My basic I/O test is here but I've also done some link testing, SRIOV/DCB with macvlans and others, Changelog: v2: two fixes to ixgbe when all features DCB, FCoE, SR-IOV are enabled with macvlans. A VMDQ_P() reference should have been accel->pool and do not set the offset of the ring index from dfwd add call. The offset is used by SR-IOV so clearing it can cause SR-IOV quue index's to go sideways. With these fixes testing macvlan's with SRIOV enabled was successful. v3: addressed Neil's comments in ixgbe fixed error path on dfwd_add_station() in ixgbe fixed ixgbe to allow SRIOV and accelerated macvlans to coexist. v4: Dave caught some strange indentation, fixed it here ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07ixgbe: enable l2 forwarding acceleration for macvlansJohn Fastabend
Now that l2 acceleration ops are in place from the prior patch, enable ixgbe to take advantage of these operations. Allow it to allocate queues for a macvlan so that when we transmit a frame, we can do the switching in hardware inside the ixgbe card, rather than in software. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net: Add layer 2 hardware acceleration operations for macvlan devicesJohn Fastabend
Add a operations structure that allows a network interface to export the fact that it supports package forwarding in hardware between physical interfaces and other mac layer devices assigned to it (such as macvlans). This operaions structure can be used by virtual mac devices to bypass software switching so that forwarding can be done in hardware more efficiently. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-07net/mlx4_en: Fixed crash when port type is changedAmir Vadai
timecounter_init() was was called only after first potential timecounter_read(). Moved mlx4_en_init_timestamp() before mlx4_en_init_netdev() Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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