Commit Graph

680776 Commits

Author SHA1 Message Date
Tomi Valkeinen
564f88c1b9 drm/omap: add new connector types
We have been using DRM_MODE_CONNECTOR_Unknown for many of our outputs
because there has not been a proper connector type for them.

We now have connector type for DPI so let's take it into use. At the
same time, add better connector types for the remaining outputs too.

This patch sets the following outputs to use the following connector
types:

DPI -> DPI
DBI -> DPI (MIPI DBI is very similar to DPI at the bus level)
SDI -> LVDS (SDI, TI Flatlink 3G, is a type of LVDS)
VENC -> SVIDEO or Composite

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:12 +03:00
Laurent Pinchart
54156c2a17 drm: omapdrm: sdi: Remove platform driver
The SDI platform driver was used for non-DT platforms only. On DT
platforms the SDI port is handled manually. As OMAP display devices are
now instantiated from DT only, remove the SDI platform driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:11 +03:00
Laurent Pinchart
5115bba18c drm: omapdrm: dpi: Remove platform driver
The DPI platform driver was used for non-DT platforms only. On DT
platforms the DPI port is handled manually. As OMAP display devices are
now instantiated from DT only, remove the DPI platform driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:11 +03:00
Laurent Pinchart
6e471faba3 drm: omapdrm: Infer the OMAP version from the SoC family
The omapdrm exposes the SoC version to userspace through an integer that
contains the OMAP model (e.g. 0x3430 for the OMAP3430). This is an
unfortunate choice of userspace API as it's both conceptually wrong
(userspace nowadays should use /sys/bus/soc/ for that purpose) and
inaccurate as many models with different features are reported with the
same version number.

The only known user of this API is the xomap X11 driver. Even if it has
been deprecated for some time we can't drop the kernel API yet. We can,
however, infer the version number from the SoC family to avoid the need
to pass the version number through platform data.

Do this, which makes the omapdrm platform data not needed anymore, and
ready to be removed.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:10 +03:00
Laurent Pinchart
278cba7eaf drm: omapdrm: Remove unused default display name support
The default display name is both unused and never set by platform data.
Remove default display name module parameter, platform data field and
runtime infrastructure.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:10 +03:00
Laurent Pinchart
fd07ab7881 drm: omapdrm: Remove unused dss_get_core_pdev() function
The dss_get_core_pdev() function is unused, remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:09 +03:00
Laurent Pinchart
1dff212ce6 drm: omapdrm: Drop support for non-DT devices
All OMAP platforms use DT nowadays, drop support for non-DT devices.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:09 +03:00
Laurent Pinchart
b22622f0cb drm: omapdrm: Remove duplicate error messages when mapping memory
The devm_ioremap_resource() call can handle being given a NULL resource,
and prints an error message when mapping fails. Switch the remaining
devm_ioremap() calls to devm_ioremap_resource() and remove all
extraneous resource NULL checks and error messages printed manually by
the driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:09 +03:00
Laurent Pinchart
c488dd2048 drm: omapdrm: Take GEM object reference when exporting dmabuf
To ensure that neither the GEM object nor the DRM device goes away while
a GEM object exported through dma-buf is still accessible, references
must be taken to both the GEM object and the DRM device at export time.
The dma-buf release handler already releases the GEM object, but the
export handler doesn't take a corresponding reference, which results in
a refcount underflow.

Fix this by replacing the custom implementation by
drm_gem_dmabuf_export() and drm_gem_dmabuf_release() that handle
reference counting for us.

Fixes: 6ad11bc3a0 ("staging: drm/omap: dmabuf/prime support")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2017-06-02 10:57:08 +03:00
Laurent Pinchart
97817fd465 drm: omapdrm: Map pages for DMA in DMA_TO_DEVICE direction
The display engine only reads from memory, there's no need to use
bidirectional DMA mappings. Use DMA_TO_DEVICE instead.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:08 +03:00
Laurent Pinchart
930dc19c0b drm: omapdrm: DMA-unmap pages for all buffer types when freeing buffers
Both coherent (uncached) and non-coherent (cached) buffers can have
their pages mapped to the device through the DMA mapping API. Make sure
to unmap any mapped page when freeing a buffer, regardless of its type.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:07 +03:00
Laurent Pinchart
24fbaca0e2 drm: omapdrm: Fix incorrect usage of the term 'cache coherency'
The is_cache_coherent() function currently returns true when the mapping
is not cache-coherent. This isn't a bug as such as the callers interpret
cache-coherent as meaning that the driver has to handle the coherency
manually, but it is nonetheless very confusing. Fix it and add a bit
more documentation to explain how cached buffers are handled.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:07 +03:00
Laurent Pinchart
d61ce7da02 drm: omapdrm: Rename GEM DMA sync functions
The omap_gem_cpu_sync() function operates at a page level, while the
omap_gem_dma_sync() function operates at a buffer level. Rename them to
omap_gem_cpu_sync_page() and omap_gem_dma_sync_buffer() respectively to
avoid confusion.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:06 +03:00
Laurent Pinchart
57c22f7cc2 drm: omapdrm: Rename the omap_gem_object addrs field to dma_addrs
The field contains DMA addresses, clarify that by renaming it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:06 +03:00
Laurent Pinchart
4fa6ce48a9 drm: omapdrm: Lower indentation level in omap_gem_dma_sync_buffer()
This makes the function more readable.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:06 +03:00
Laurent Pinchart
bc20c85cab drm: omapdrm: Rename omap_gem_(get|put)_paddr() to omap_gem_(un)pin()
The reflects the purpose of the function better.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:05 +03:00
Laurent Pinchart
16869083b9 drm: omapdrm: Rename occurrences of paddr to dma_addr
The fields, variables and functions deal with DMA addresses, name them
accordingly. The omap_gem_get_paddr() and omap_gem_put_paddr() will be
addressed differently separately.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:05 +03:00
Laurent Pinchart
aa0408bcb1 drm: omapdrm: Remove remap argument to omap_gem_get_paddr()
The function is always called with the remap argument set to true.
Hardcode that behaviour and remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:04 +03:00
Laurent Pinchart
dff6c24698 drm: omapdrm: Add zpos property
Create a standard zpos property for every plane as an alias to the
omapdrm-specific zorder property. Unlike the zorder property that has to
be instantiated for both planes and CRTCs due to backward compatibility,
the zpos property is only instantiated for planes. When userspace will
have switched to the zpos property the zorder property will be removed.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:04 +03:00
Laurent Pinchart
d980278bd8 drm: omapdrm: Remove custom plane state
The custom plane state only encapsulates the standard plane state with
adding any custom field. Remove it and use the atomic plane helpers
directly.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:57:02 +03:00
Laurent Pinchart
ba527c1364 drm: omapdrm: Store the Z order in the plane state zpos field
The DRM core implements a standard "zpos" property to control planes
ordering. The omapdrm driver implements a similar property named
"zorder". Although we can't switch to DRM core handling of the "zpos"
property for backward compatibility reasons, we can store the zorder
value in the drm_plane_state zpos field, saving us from adding a custom
field to the plane state.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:55:03 +03:00
Laurent Pinchart
d6f544f6bf drm: omapdrm: Remove legacy buffer synchronization support
The omapdrm driver uses a custom API to synchronize with the SGX GPU.
This is unusable as such in the mainline kernel as the API is only
partially implemented and requires additional out-of-tree patches.
Furthermore, as no SGX driver is available in the mainline kernel, the
API can't be considered as a stable mainline API.

Now that the driver supports synchronization through fences, remove
legacy buffer synchronization support. The two userspace ioctls are
turned into no-ops to avoid breaking userspace and will be removed in
the future.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:53:43 +03:00
Laurent Pinchart
a9e6f9f7d6 drm: omapdrm: Use DRM core's atomic commit helper
The DRM core atomic helper now supports asynchronous commits natively.
The custom omapdrm implementation isn't needed anymore, remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:53:42 +03:00
Laurent Pinchart
ce9a8f1ad7 drm: omapdrm: Handle events when enabling/disabling CRTCs
The driver currently handles vblank events only when updating planes on
an already enabled CRTC. The atomic update API however allows requesting
an event when enabling or disabling a CRTC. This currently leads to
event objects being leaked in the kernel and to events not being sent
out. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-06-02 10:53:41 +03:00
Jean-Philippe Brucker
ebcdaee4ce dmaengine: pl330: fix warning in pl330_remove
When removing a device with less than 9 IRQs (AMBA_NR_IRQS), we'll get a
big WARN_ON from devres.c because pl330_remove calls devm_free_irqs for
unallocated irqs. Similarly to pl330_probe, check that IRQ number is
present before calling devm_free_irq.

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-06-02 11:49:44 +05:30
Andi Shyti
c4beedb8a9 Input: tm2-touchkey - use LEN_ON as boolean value instead of LED_FULL
Commit 4e552c8cb5 ("leds: add LED_ON brightness as boolean value")
has introduced the LED_ON enumeration value that can be used
instead of LED_FULL which has more of a linear value.

Because the tm2-touchscreen doesn't have brightness levels, but
it's a simple on/off led, use LED_ON instead of LED_FULL.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Jaechul Lee <jcsing.lee@samsung.com>
Tested-by: Jaechul Lee <jcsing.lee@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-06-01 22:08:05 -07:00
Dave Airlie
28904eeced Merge tag 'topic/dp-quirks-2017-05-31' of git://anongit.freedesktop.org/git/drm-intel into drm-fixes
DP sink specific quirks

* tag 'topic/dp-quirks-2017-05-31' of git://anongit.freedesktop.org/git/drm-intel:
  drm/i915: Detect USB-C specific dongles before reducing M and N
  drm/dp: start a DPCD based DP sink/branch device quirk database
  drm/i915: use drm DP helper to read DPCD desc
  drm/dp: add helper for reading DP sink/branch device desc from DPCD
2017-06-02 12:57:32 +10:00
Olof Johansson
243f6aa009 Merge tag 'davinci-fixes-for-v4.12-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes
A fix to MAINTAINERS file adding relevant device-tree
files to mach-davinci entry.

* tag 'davinci-fixes-for-v4.12-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  MAINTAINERS: add device-tree files to TI DaVinci entry

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-01 17:07:43 -07:00
Olof Johansson
c883af2f2b Merge tag 'mvebu-fixes-non-critical-4.12-1' of git://git.infradead.org/linux-mvebu into fixes
mvebu non critical fixes for 4.12

Update MAINTAINER file for irqchip related drivers to Marvell EBU

* tag 'mvebu-fixes-non-critical-4.12-1' of git://git.infradead.org/linux-mvebu:
  MAINTAINERS: add irqchip related drivers to Marvell EBU maintainers
  MAINTAINERS: sort F entries for Marvell EBU maintainers

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-01 17:07:40 -07:00
Olof Johansson
1ba2eaaacd Merge tag 'mvebu-fixes-4.12-1' of git://git.infradead.org/linux-mvebu into fixes
mvebu fixes for 4.12

Fix the interrupt description of the crypto node for device tree of
the Armada 7K/8K SoCs

* tag 'mvebu-fixes-4.12-1' of git://git.infradead.org/linux-mvebu: (316 commits)
  arm64: marvell: dts: fix interrupts in 7k/8k crypto nodes
  + Linux 4.12-rc2

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-01 17:07:38 -07:00
Patrice Chotard
73069883c0 MAINTAINERS: remove kernel@stlinux.com obsolete mailing list
The STMicroelectronics dedicated mailing list kernel@stlinux.com
is no more available, remove it to avoid bouncing mails.

Several request to create a new mailing list has been send by Benjamin
Gaignard and me but without any answers.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-01 17:07:36 -07:00
Olof Johansson
84d40c0b73 Merge tag 'reset-fixes-for-4.12' of git://git.pengutronix.de/git/pza/linux into fixes
Reset controller fixes for v4.12

- Set hi6220_reset driver module license to GPL v2 to fix module loading.

* tag 'reset-fixes-for-4.12' of git://git.pengutronix.de/git/pza/linux:
  reset: hi6220: Set module license so that it can be loaded

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-01 17:07:33 -07:00
Olof Johansson
da3d1d4a4e Merge tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into fixes
Fixes for 4.12:

Fix two compilation issues

* tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  ARM: at91: select CONFIG_ARM_CPU_SUSPEND
  memory: atmel-ebi: mark PM ops as __maybe_unused

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-01 17:07:31 -07:00
Masahiro Yamada
cf5cde2199 ARM: dts: versatile: use #include "..." to include local DT
Most of DT files in ARM use #include "..." to make pre-processor
include DT in the same directory, but this is one of the exceptional
files that use #include <...> for that.

Fix it to remove -I$(srctree)/arch/$(SRCARCH)/boot/dts path from
dtc_cpp_flags.

ARM: dts: versatile: use #include "..." to include DT in the same directory

Most of DT files in ARM use #include "..." to make pre-processor
include DT in the same directory, but we have 3 exceptional files
that use #include <...> for that.

They must be fixed to remove -I$(srctree)/arch/$(SRCARCH)/boot/dts
path from dtc_cpp_flags.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-01 17:07:29 -07:00
Linus Torvalds
3b1e342be2 Revert patch accidentally included in the merge window pull request, and
fix a crash that was likely a result of buggy client behavior.
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Merge tag 'nfsd-4.12-1' of git://linux-nfs.org/~bfields/linux

Pull nfsd fixes from Bruce Fields:
 "Revert patch accidentally included in the merge window pull request,
  and fix a crash that was likely a result of buggy client behavior"

* tag 'nfsd-4.12-1' of git://linux-nfs.org/~bfields/linux:
  nfsd4: fix null dereference on replay
  nfsd: Revert "nfsd: check for oversized NFSv2/v3 arguments"
2017-06-01 16:24:48 -07:00
Linus Torvalds
2f48641cfc Use designated initializers for mtk-vcodec, powerplay, amdgpu, and sgi-xp.
Use ERR_CAST() to avoid cross-structure cast in ocf2, ntfs, and NFS.
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Merge tag 'gcc-plugins-v4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull gcc-plugin prepwork from Kees Cook:
 "Use designated initializers for mtk-vcodec, powerplay, amdgpu, and
  sgi-xp. Use ERR_CAST() to avoid cross-structure cast in ocf2, ntfs,
  and NFS.

  Christoph Hellwig recommended that I send these fixes now, rather than
  waiting for the v4.13 merge window. These are all initializer and cast
  fixes needed for the future randstruct plugin that haven't been picked
  up by the respective maintainers"

* tag 'gcc-plugins-v4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  mtk-vcodec: Use designated initializers
  drm/amd/powerplay: Use designated initializers
  drm/amdgpu: Use designated initializers
  sgi-xp: Use designated initializers
  ocfs2: Use ERR_CAST() to avoid cross-structure cast
  ntfs: Use ERR_CAST() to avoid cross-structure cast
  NFS: Use ERR_CAST() to avoid cross-structure cast
2017-06-01 16:17:42 -07:00
Majd Dibbiny
d3957b86a4 RDMA/SA: Fix kernel panic in CMA request handler flow
Commit 9fdca4da4d (IB/SA: Split struct sa_path_rec based on IB and
ROCE specific fields) moved the service_id to be specific attribute
for IB and OPA SA Path Record, and thus wasn't assigned for RoCE.

This caused to the following kernel panic in the CMA request handler flow:

[   27.074594] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[   27.074731] IP: __radix_tree_lookup+0x1d/0xe0
...
[   27.075356] Workqueue: ib_cm cm_work_handler [ib_cm]
[   27.075401] task: ffff88022e3b8000 task.stack: ffffc90001298000
[   27.075449] RIP: 0010:__radix_tree_lookup+0x1d/0xe0
...
[   27.075979] Call Trace:
[   27.076015]  radix_tree_lookup+0xd/0x10
[   27.076055]  cma_ps_find+0x59/0x70 [rdma_cm]
[   27.076097]  cma_id_from_event+0xd2/0x470 [rdma_cm]
[   27.076144]  ? ib_init_ah_from_path+0x39a/0x590 [ib_core]
[   27.076193]  cma_req_handler+0x25/0x480 [rdma_cm]
[   27.076237]  cm_process_work+0x25/0x120 [ib_cm]
[   27.076280]  ? cm_get_bth_pkey.isra.62+0x3c/0xa0 [ib_cm]
[   27.076350]  cm_req_handler+0xb03/0xd40 [ib_cm]
[   27.076430]  ? sched_clock_cpu+0x11/0xb0
[   27.076478]  cm_work_handler+0x194/0x1588 [ib_cm]
[   27.076525]  process_one_work+0x160/0x410
[   27.076565]  worker_thread+0x137/0x4a0
[   27.076614]  kthread+0x112/0x150
[   27.076684]  ? max_active_store+0x60/0x60
[   27.077642]  ? kthread_park+0x90/0x90
[   27.078530]  ret_from_fork+0x2c/0x40

This patch moves it back to the common SA Path Record structure
and removes the redundant setter and getter.

Tested on Connect-IB and Connect-X4 in Infiniband and RoCE respectively.

Fixes: 9fdca4da4d (IB/SA: Split struct sa_path_rec based on IB ands
	ROCE specific fields)
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:20:14 -04:00
Leon Romanovsky
79bb5b7ee1 RDMA/umem: Fix missing mmap_sem in get umem ODP call
Add mmap_sem lock around VMA inspection in ib_umem_odp_get().

Fixes: 0008b84ea9 ('IB/umem: Add support to huge ODP')
Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:20:13 -04:00
Qing Huang
53376fedb9 RDMA/core: not to set page dirty bit if it's already set.
This change will optimize kernel memory deregistration operations.
__ib_umem_release() used to call set_page_dirty_lock() against every
writable page in its memory region. Its purpose is to keep data
synced between CPU and DMA device when swapping happens after mem
deregistration ops. Now we choose not to set page dirty bit if it's
already set by kernel prior to calling __ib_umem_release(). This
reduces memory deregistration time by half or even more when we ran
application simulation test program.

Signed-off-by: Qing Huang <qing.huang@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:20:12 -04:00
Leon Romanovsky
f937d93a91 RDMA/uverbs: Declare local function static and add brackets to sizeof
Commit 5752075144 ("IB/SA: Add OPA path record type") introduced
new local function __ib_copy_path_rec_to_user, but didn't limit its
scope. This produces the following sparse warning:

	drivers/infiniband/core/uverbs_marshall.c:99:6: warning:
	symbol '__ib_copy_path_rec_to_user' was not declared. Should it be
	static?

In addition, it used sizeof ... notations instead of sizeof(...), which
is correct in C, but a little bit misleading. Let's change it too.

Fixes: 5752075144 ("IB/SA: Add OPA path record type")
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:20:12 -04:00
Leon Romanovsky
233c195583 RDMA/netlink: Reduce exposure of RDMA netlink functions
RDMA netlink is part of ib_core, hence ibnl_chk_listeners(),
ibnl_init() and ibnl_cleanup() don't need to be published
in public header file.

Let's remove EXPORT_SYMBOL from ibnl_chk_listeners() and move all these
functions to private header file.

CC: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:20:11 -04:00
Israel Rukshin
95c2ef50c7 RDMA/srp: Fix NULL deref at srp_destroy_qp()
If srp_init_qp() fails at srp_create_ch_ib() then ch->send_cq
may be NULL.
Calling directly to ib_destroy_qp() is sufficient because
no work requests were posted on the created qp.

Fixes: 9294000d6d ("IB/srp: Drain the send queue before destroying a QP")
Cc: <stable@vger.kernel.org>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Bart van Assche <bart.vanassche@sandisk.com>--
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:20:10 -04:00
Leon Romanovsky
0a1a972630 RDMA/IPoIB: Limit the ipoib_dev_uninit_default scope
ipoib_dev_uninit_default() call is used in ipoib_main.c file only
and it generates the following warning from smatch tool:
	drivers/infiniband/ulp/ipoib/ipoib_main.c:1593:6: warning:
	symbol 'ipoib_dev_uninit_default' was not declared. Should it
	be static?

so let's declare that function as static.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:20:10 -04:00
Honggang Li
8c490669de RDMA/IPoIB: Replace netdev_priv with ipoib_priv for ipoib_get_link_ksettings
ipoib_dev_init accesses the wrong private data for the IPoIB device.
Commit cd565b4b51 (IB/IPoIB: Support acceleration options callbacks)
changed ipoib_priv from being identical to netdev_priv to being an
area inside of, but not the same pointer as, the netdev_priv pointer.
As such, the struct we want is the ipoib_priv area, not the netdev_priv
area, so use the right accessor, otherwise we kernel panic.

[   27.271938] IPv6: ADDRCONF(NETDEV_CHANGE): mlx5_ib0.8006: link becomes ready
[   28.156790] BUG: unable to handle kernel NULL pointer dereference at 000000000000067c
[   28.166309] IP: ib_query_port+0x30/0x180 [ib_core]
...
[   28.306282] RIP: 0010:ib_query_port+0x30/0x180 [ib_core]
...
[   28.393337] Call Trace:
[   28.397594]  ipoib_get_link_ksettings+0x66/0xe0 [ib_ipoib]
[   28.405274]  __ethtool_get_link_ksettings+0xa0/0x1c0
[   28.412353]  speed_show+0x74/0xa0
[   28.417503]  dev_attr_show+0x20/0x50
[   28.422922]  ? mutex_lock+0x12/0x40
[   28.428179]  sysfs_kf_seq_show+0xbf/0x1a0
[   28.434002]  kernfs_seq_show+0x21/0x30
[   28.439470]  seq_read+0x116/0x3b0
[   28.444445]  ? do_filp_open+0xa5/0x100
[   28.449774]  kernfs_fop_read+0xff/0x180
[   28.455220]  __vfs_read+0x37/0x150
[   28.460167]  ? security_file_permission+0x9d/0xc0
[   28.466560]  vfs_read+0x8c/0x130
[   28.471318]  SyS_read+0x55/0xc0
[   28.475950]  do_syscall_64+0x67/0x150
[   28.481163]  entry_SYSCALL64_slow_path+0x25/0x25
...
[   28.584493] ---[ end trace 3549968a4bf0aa5d ]---

Fixes: cd565b4b51 (IB/IPoIB: Support acceleration options callbacks)
Fixes: 0d7e2d2166 (IB/ipoib: add get_link_ksettings in ethtool)
Signed-off-by: Honggang Li <honli@redhat.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:20:09 -04:00
Gustavo A. R. Silva
d38d7fdafa RDMA/qedr: add null check before pointer dereference
Add null check before dereferencing pointer sgid_attr.ndev
inside function rdma_vlan_dev_vlan_id().

Addresses-Coverity-ID: 1373979
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:20:08 -04:00
Max Gurtovoy
6e8484c5cf RDMA/mlx5: set UMR wqe fence according to HCA cap
Cache the needed umr_fence and set the wqe ctrl segmennt
accordingly.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Acked-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:19:57 -04:00
Max Gurtovoy
1410a90ae4 net/mlx5: Define interface bits for fencing UMR wqe
HW can implement UMR wqe re-transmission in various ways.
Thus, add HCA cap to distinguish the needed fence for UMR to make
sure that the wqe wouldn't fail on mkey checks.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Acked-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:05:04 -04:00
Jack Morgenstein
eed7624552 RDMA/mlx4: Fix MAD tunneling when SRIOV is enabled
The cited patch added a type field to structures ib_ah and rdma_ah_attr.

Function mlx4_ib_query_ah() builds an rdma_ah_attr structure from the
data in an mlx4_ib_ah structure (which contains both an ib_ah structure
and an address vector).

For mlx4_ib_query_ah() to work properly, the type field in the contained
ib_ah structure must be set correctly.

In the outgoing MAD tunneling flow, procedure mlx4_ib_multiplex_mad()
paravirtualizes a MAD received from a slave and sends the processed
mad out over the wire. During this processing, it populates an
mlx4_ib_ah structure and calls mlx4_ib_query_ah().

The cited commit overlooked setting the type field in the contained
ib_ah structure before invoking mlx4_ib_query_ah(). As a result, the
type field remained uninitialized, and the rdma_ah_attr structure was
incorrectly built. This resulted in improperly built MADs being sent out
over the wire.

This patch properly initializes the type field in the contained ib_ah
structure before calling mlx4_ib_query_ah(). The rdma_ah_attr structure
is then generated correctly.

Fixes: 44c58487d5 ("IB/core: Define 'ib' and 'roce' rdma_ah_attr types")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:04:51 -04:00
Mike Marciniszyn
1feb40067c RDMA/qib,hfi1: Fix MR reference count leak on write with immediate
The handling of IB_RDMA_WRITE_ONLY_WITH_IMMEDIATE will leak a memory
reference when a buffer cannot be allocated for returning the immediate
data.

The issue is that the rkey validation has already occurred and the RNR
nak fails to release the reference that was fruitlessly gotten.  The
the peer will send the identical single packet request when its RNR
timer pops.

The fix is to release the held reference prior to the rnr nak exit.
This is the only sequence the requires both rkey validation and the
buffer allocation on the same packet.

Cc: Stable <stable@vger.kernel.org> # 4.7+
Tested-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:04:33 -04:00
Byczkowski, Jakub
b3e6b4bdbb RDMA/hfi1: Defer setting VL15 credits to link-up interrupt
Keep VL15 credits at 0 during LNI, before link-up. Store
VL15 credits value during verify cap interrupt and set
in after link-up. This addresses an issue where VL15 MAD
packets could be sent by one side of the link before
the other side is ready to receive them.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jakub Byczkowski <jakub.byczkowski@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:04:20 -04:00