Commit Graph

873511 Commits

Author SHA1 Message Date
Zhan liu 40ba979698 drm/amd/display: Change Navi14's DWB flag to 1
[Why]
DWB (Display Writeback) flag needs to be enabled as 1, or system
will throw out a few warnings when creating dcn20 resource pool.
Also, Navi14's dwb setting needs to match Navi10's,
which has already been set to 1.

[How]
Change value of num_dwb from 0 to 1.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-10-30 11:55:53 -04:00
Pierre-Eric Pelloux-Prayer 9bdf63d357 drm/amdgpu/sdma5: do not execute 0-sized IBs (v2)
This seems to help with https://bugs.freedesktop.org/show_bug.cgi?id=111481.

v2: insert a NOP instead of skipping all 0-sized IBs to avoid breaking older hw

Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-10-30 11:55:20 -04:00
chen gong e5574f61e9 drm/amdgpu: Fix SDMA hang when performing VKexample test
VKexample test hang during Occlusion/SDMA/Varia runs.
Clear XNACK_WATERMK in reg SDMA0_UTCL1_WATERMK to fix this issue.

Signed-off-by: chen gong <curry.gong@amd.com>
Reviewed-by: Aaron Liu <aaron.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2019-10-30 11:54:33 -04:00
Shmulik Ladkani cf204a7183 bpf, testing: Introduce 'gso_linear_no_head_frag' skb_segment test
Following reports of skb_segment() hitting a BUG_ON when working on
GROed skbs which have their gso_size mangled (e.g. after a
bpf_skb_change_proto call), add a reproducer test that mimics the
input skbs that lead to the mentioned BUG_ON as in [1] and validates the
fix submitted in [2].

[1] https://lists.openwall.net/netdev/2019/08/26/110
[2] commit 3dcbdb134f ("net: gso: Fix skb_segment splat when splitting gso_size mangled skb having linear-headed frag_list")

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191025134223.2761-3-shmulik.ladkani@gmail.com
2019-10-30 16:37:08 +01:00
Shmulik Ladkani af21c717f4 bpf, testing: Refactor test_skb_segment() for testing skb_segment() on different skbs
Currently, test_skb_segment() builds a single test skb and runs
skb_segment() on it.

Extend test_skb_segment() so it processes an array of numerous
skb/feature pairs to test.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191025134223.2761-2-shmulik.ladkani@gmail.com
2019-10-30 16:37:01 +01:00
Ilya Leoshkevich 7e07e7aec5 bpf: Add s390 testing documentation
This commits adds a document that explains how to test BPF in an s390
QEMU guest.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191029172916.36528-1-iii@linux.ibm.com
2019-10-30 16:25:31 +01:00
Ilya Leoshkevich 9ffccb7606 selftests/bpf: Test narrow load from bpf_sysctl.write
There are tests for full and narrows loads from bpf_sysctl.file_pos, but
for bpf_sysctl.write only full load is tested. Add the missing test.

Suggested-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrey Ignatov <rdna@fb.com>
Link: https://lore.kernel.org/bpf/20191029143027.28681-1-iii@linux.ibm.com
2019-10-30 16:24:06 +01:00
Alexei Starovoitov 15ab09bdca bpf: Enforce 'return 0' in BTF-enabled raw_tp programs
The return value of raw_tp programs is ignored by __bpf_trace_run()
that calls them. The verifier also allows any value to be returned.
For BTF-enabled raw_tp lets enforce 'return 0', so that return value
can be used for something in the future.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20191029032426.1206762-1-ast@kernel.org
2019-10-30 16:22:55 +01:00
Ayala Beker 3d206e6899 iwlwifi: fw api: support new API for scan config cmd
The API was reduced to include only knowledge currently needed by the
FW scan logic, the rest is legacy.  Support the new, reduced version.

Using the old API with newer firmwares (starting from
iwlwifi-*-50.ucode, which implements and requires the new API version)
causes an assertion failure similar to this one:

[    2.854505] iwlwifi 0000:00:14.3: 0x20000038 | BAD_COMMAND

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-30 17:00:26 +02:00
Lorenzo Bianconi 7bd0650be6 mt76: dma: fix buffer unmap with non-linear skbs
mt76 dma layer is supposed to unmap skb data buffers while keep txwi
mapped on hw dma ring. At the moment mt76 wrongly unmap txwi or does
not unmap data fragments in even positions for non-linear skbs. This
issue may result in hw hangs with A-MSDU if the system relies on IOMMU
or SWIOTLB. Fix this behaviour properly unmapping data fragments on
non-linear skbs.

Fixes: 17f1de56df ("mt76: add common code shared between multiple chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-30 16:59:48 +02:00
Lorenzo Bianconi f37f055035 mt76: mt76x2e: disable pcie_aspm by default
On same device (e.g. U7612E-H1) PCIE_ASPM causes continuous mcu hangs and
instability. Since mt76x2 series does not manage PCIE PS states, first we
try to disable ASPM using pci_disable_link_state. If it fails, we will
disable PCIE PS configuring PCI registers.
This patch has been successfully tested on U7612E-H1 mini-pice card

Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-30 16:59:46 +02:00
Takashi Iwai 302d5a80d2 ALSA: hda - Fix mutex deadlock in HDMI codec driver
The commit ade49db337 ("ALSA: hda/hdmi - Allow audio component for
AMD/ATI and Nvidia HDMI") introduced the spec->pcm_lock mutex lock to
the whole generic_hdmi_init() function for avoiding the race with the
audio component registration.  However, this caused a dead lock when
the unsolicited event is handled without the audio component, as the
codec gets runtime-resumed in hdmi_present_sense() which is already
inside the spec->pcm_lock in its caller.

For avoiding this deadlock, add a new mutex only for the audio
component binding that is used in both generic_hdmi_init() and the
audio notifier registration where the jack callbacks are handled /
re-registered.

Fixes: ade49db337 ("ALSA: hda/hdmi - Allow audio component for AMD/ATI and Nvidia HDMI")
Reported-and-tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/s5himo7i89i.wl-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-30 15:32:37 +01:00
Linus Torvalds 320000e72e IOMMU Fixes for Linux v5.4-rc5
Including:
 
 	- Follow-on fix for Renesas IPMMU to get rid of a redundant
 	  error message.
 
 	- Quirk for AMD IOMMU to make it work on another Acer Laptop
 	  model with a broken IVRS ACPI table.
 
 	- Fix for a panic at kdump in the Intel IOMMU driver.
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Merge tag 'iommu-fixes-v5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Follow-on fix for Renesas IPMMU to get rid of a redundant error
   message.

 - Quirk for AMD IOMMU to make it work on another Acer Laptop model with
   a broken IVRS ACPI table.

 - Fix for a panic at kdump in the Intel IOMMU driver.

* tag 'iommu-fixes-v5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Fix panic after kexec -p for kdump
  iommu/amd: Apply the same IVRS IOAPIC workaround to Acer Aspire A315-41
  iommu/ipmmu-vmsa: Remove dev_err() on platform_get_irq() failure
2019-10-30 14:17:18 +01:00
Linus Torvalds b66b449872 Fix remounting (broken in -rc1).
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Merge tag 'gfs2-v5.4-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 fix from Andreas Gruenbacher:
 "Fix remounting (broken in -rc1)."

* tag 'gfs2-v5.4-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Fix initialisation of args for remount
2019-10-30 14:05:40 +01:00
Andrew Price d5798141fd gfs2: Fix initialisation of args for remount
When gfs2 was converted to use fs_context, the initialisation of the
mount args structure to the currently active args was lost with the
removal of gfs2_remount_fs(), so the checks of the new args on remount
became checks against the default values instead of the current ones.
This caused unexpected remount behaviour and test failures (xfstests
generic/294, generic/306 and generic/452).

Reinstate the args initialisation, this time in gfs2_init_fs_context()
and conditional upon fc->purpose, as that's the only time we get control
before the mount args are parsed in the remount process.

Fixes: 1f52aa08d1 ("gfs2: Convert gfs2 to fs_context")
Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
2019-10-30 12:16:53 +01:00
John Donnelly 160c63f909 iommu/vt-d: Fix panic after kexec -p for kdump
This cures a panic on restart after a kexec operation on 5.3 and 5.4
kernels.

The underlying state of the iommu registers (iommu->flags &
VTD_FLAG_TRANS_PRE_ENABLED) on a restart results in a domain being marked as
"DEFER_DEVICE_DOMAIN_INFO" that produces an Oops in identity_mapping().

[   43.654737] BUG: kernel NULL pointer dereference, address:
0000000000000056
[   43.655720] #PF: supervisor read access in kernel mode
[   43.655720] #PF: error_code(0x0000) - not-present page
[   43.655720] PGD 0 P4D 0
[   43.655720] Oops: 0000 [#1] SMP PTI
[   43.655720] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
5.3.2-1940.el8uek.x86_64 #1
[   43.655720] Hardware name: Oracle Corporation ORACLE SERVER
X5-2/ASM,MOTHERBOARD,1U, BIOS 30140300 09/20/2018
[   43.655720] RIP: 0010:iommu_need_mapping+0x29/0xd0
[   43.655720] Code: 00 0f 1f 44 00 00 48 8b 97 70 02 00 00 48 83 fa ff
74 53 48 8d 4a ff b8 01 00 00 00 48 83 f9 fd 76 01 c3 48 8b 35 7f 58 e0
01 <48> 39 72 58 75 f2 55 48 89 e5 41 54 53 48 8b 87 28 02 00 00 4c 8b
[   43.655720] RSP: 0018:ffffc9000001b9b0 EFLAGS: 00010246
[   43.655720] RAX: 0000000000000001 RBX: 0000000000001000 RCX:
fffffffffffffffd
[   43.655720] RDX: fffffffffffffffe RSI: ffff8880719b8000 RDI:
ffff8880477460b0
[   43.655720] RBP: ffffc9000001b9e8 R08: 0000000000000000 R09:
ffff888047c01700
[   43.655720] R10: 00002194036fc692 R11: 0000000000000000 R12:
0000000000000000
[   43.655720] R13: ffff8880477460b0 R14: 0000000000000cc0 R15:
ffff888072d2b558
[   43.655720] FS:  0000000000000000(0000) GS:ffff888071c00000(0000)
knlGS:0000000000000000
[   43.655720] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.655720] CR2: 0000000000000056 CR3: 000000007440a002 CR4:
00000000001606b0
[   43.655720] Call Trace:
[   43.655720]  ? intel_alloc_coherent+0x2a/0x180
[   43.655720]  ? __schedule+0x2c2/0x650
[   43.655720]  dma_alloc_attrs+0x8c/0xd0
[   43.655720]  dma_pool_alloc+0xdf/0x200
[   43.655720]  ehci_qh_alloc+0x58/0x130
[   43.655720]  ehci_setup+0x287/0x7ba
[   43.655720]  ? _dev_info+0x6c/0x83
[   43.655720]  ehci_pci_setup+0x91/0x436
[   43.655720]  usb_add_hcd.cold.48+0x1d4/0x754
[   43.655720]  usb_hcd_pci_probe+0x2bc/0x3f0
[   43.655720]  ehci_pci_probe+0x39/0x40
[   43.655720]  local_pci_probe+0x47/0x80
[   43.655720]  pci_device_probe+0xff/0x1b0
[   43.655720]  really_probe+0xf5/0x3a0
[   43.655720]  driver_probe_device+0xbb/0x100
[   43.655720]  device_driver_attach+0x58/0x60
[   43.655720]  __driver_attach+0x8f/0x150
[   43.655720]  ? device_driver_attach+0x60/0x60
[   43.655720]  bus_for_each_dev+0x74/0xb0
[   43.655720]  driver_attach+0x1e/0x20
[   43.655720]  bus_add_driver+0x151/0x1f0
[   43.655720]  ? ehci_hcd_init+0xb2/0xb2
[   43.655720]  ? do_early_param+0x95/0x95
[   43.655720]  driver_register+0x70/0xc0
[   43.655720]  ? ehci_hcd_init+0xb2/0xb2
[   43.655720]  __pci_register_driver+0x57/0x60
[   43.655720]  ehci_pci_init+0x6a/0x6c
[   43.655720]  do_one_initcall+0x4a/0x1fa
[   43.655720]  ? do_early_param+0x95/0x95
[   43.655720]  kernel_init_freeable+0x1bd/0x262
[   43.655720]  ? rest_init+0xb0/0xb0
[   43.655720]  kernel_init+0xe/0x110
[   43.655720]  ret_from_fork+0x24/0x50

Fixes: 8af46c784e ("iommu/vt-d: Implement is_attach_deferred iommu ops entry")
Cc: stable@vger.kernel.org # v5.3+

Signed-off-by: John Donnelly <john.p.donnelly@oracle.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-10-30 10:30:22 +01:00
Takashi Iwai ad3e8da2d4 iommu/amd: Apply the same IVRS IOAPIC workaround to Acer Aspire A315-41
Acer Aspire A315-41 requires the very same workaround as the existing
quirk for Dell Latitude 5495.  Add the new entry for that.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1137799
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-10-30 10:24:03 +01:00
YueHaibing 565d454280 iommu/ipmmu-vmsa: Remove dev_err() on platform_get_irq() failure
platform_get_irq() will call dev_err() itself on failure,
so there is no need for the driver to also do this.
This is detected by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-10-30 10:16:37 +01:00
Markus Theil 1fab1b89e2 nl80211: fix validation of mesh path nexthop
Mesh path nexthop should be a ethernet address, but current validation
checks against 4 byte integers.

Cc: stable@vger.kernel.org
Fixes: 2ec600d672 ("nl80211/cfg80211: support for mesh, sta dumping")
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20191029093003.10355-1-markus.theil@tu-ilmenau.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-30 10:11:18 +01:00
Masashi Honma ec649fed66 nl80211: Disallow setting of HT for channel 14
This patch disables setting of HT20 and more for channel 14 because
the channel is only for IEEE 802.11b.

The patch for net/wireless/util.c was unit-tested.

The patch for net/wireless/chan.c was tested with iw command.

Before this patch.
$ sudo iw dev <ifname> set channel 14 HT20
$

After this patch.
$ sudo iw dev <ifname> set channel 14 HT20
kernel reports: invalid channel definition
command failed: Invalid argument (-22)
$

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://lore.kernel.org/r/20191021075045.2719-1-masashi.honma@gmail.com
[clean up the code, use != instead of equivalent >]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-30 10:07:22 +01:00
Palmer Dabbelt 1d9b0b66c3 MAINTAINERS: Change to my personal email address
I'm leaving SiFive in a bit less than two weeks, which means I'll be
losing my @sifive email address.  I don't have my new email address yet,
so I'm switching over to my personal address instead.

Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-10-30 01:03:34 -07:00
Ville Syrjälä 59cd826fb5 drm/i915: Fix PCH reference clock for FDI on HSW/BDW
The change to skip the PCH reference initialization during fastboot
did end up breaking FDI. To fix that let's try to do the PCH reference
init whenever we're disabling a DPLL that was using said reference
previously.

Cc: stable@vger.kernel.org
Tested-by: Andrija <akijo97@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=112084
Fixes: b16c7ed95c ("drm/i915: Do not touch the PCH SSC reference if a PLL is using it")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022185643.1483-1-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
(cherry picked from commit dd5279c714)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2019-10-29 21:50:24 -07:00
Sasha Neftin 203bddfdfb e1000e: Fix compiler warning when CONFIG_PM_SLEEP is not set
When CONFIG_PM_SLEEP is not defined compiler complain as follow:
CC [M]  drivers/net/ethernet/intel/e1000e/netdev.o
drivers/net/ethernet/intel/e1000e/netdev.c:6302:12: warning: ‘e1000e_s0ix_entry_flow’ defined but not used [-Wunused-function]
static void e1000e_s0ix_entry_flow(struct e1000_adapter *adapter)
drivers/net/ethernet/intel/e1000e/netdev.c:6411:12: warning: ‘e1000e_s0ix_exit_flow’ defined but not used [-Wunused-function]
static void e1000e_s0ix_exit_flow(struct e1000_adapter *adapter)
LD [M]  drivers/net/ethernet/intel/e1000e/e1000e.o

Add wrap to fix these warnings.

Reported-by: kbuild test robot <lpk@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-10-29 21:25:28 -07:00
Sasha Neftin fb776f5d57 e1000e: Add support for Tiger Lake
Add devices ID's for the next LOM generations that will be
available on the next Intel Client platform (Tiger Lake)
This patch provides the initial support for these devices

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-10-29 21:17:35 -07:00
Josh Hunt 3fd8ed5639 i40e: Add UDP segmentation offload support
Based on a series from Alexander Duyck this change adds UDP segmentation
offload support to the i40e driver.

CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Willem de Bruijn <willemb@google.com>
Signed-off-by: Josh Hunt <johunt@akamai.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-10-29 21:11:49 -07:00
Josh Hunt c74d4bdbae ixgbe: Add UDP segmentation offload support
Repost from a series by Alexander Duyck to add UDP segmentation offload
support to the igb driver:
https://lore.kernel.org/netdev/20180504003916.4769.66271.stgit@localhost.localdomain/

CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Willem de Bruijn <willemb@google.com>
Suggested-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Josh Hunt <johunt@akamai.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-10-29 21:08:23 -07:00
Josh Hunt 4085d06d2f igb: Add UDP segmentation offload support
Based on a series from Alexander Duyck this change adds UDP segmentation
offload support to the igb driver.

CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Willem de Bruijn <willemb@google.com>
Signed-off-by: Josh Hunt <johunt@akamai.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-10-29 21:05:33 -07:00
David S. Miller 749234419a Merge branch 'nfc-pn533-add-uart-phy-driver'
Lars Poeschel says:

====================
nfc: pn533: add uart phy driver

The purpose of this patch series is to add a uart phy driver to the
pn533 nfc driver.
It first changes the dt strings and docs. The dt compatible strings
need to change, because I would add "pn532-uart" to the already
existing "pn533-i2c" one. These two are now unified into just
"pn532". Then the neccessary changes to the pn533 core driver are
made. Then the uart phy is added.
As the pn532 chip supports a autopoll, I wanted to use this instead
of the software poll loop in the pn533 core driver. It is added and
activated by the last to patches.
The way to add the autopoll later in seperate patches is chosen, to
show, that the uart phy driver can also work with the software poll
loop, if someone needs that for some reason.
In v11 of this patchseries I address a byte ordering issue reported
by kbuild test robot in patch 5/7.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 21:05:26 -07:00
Lars Poeschel e4a5dc1849 nfc: pn532_uart: Make use of pn532 autopoll
This switches the pn532 UART phy driver from manually polling to the new
autopoll mechanism.

Cc: Johan Hovold <johan@kernel.org>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 21:05:26 -07:00
Lars Poeschel c64b875fe1 nfc: pn533: Add autopoll capability
pn532 devices support an autopoll command, that lets the chip
automatically poll for selected nfc technologies instead of manually
looping through every single nfc technology the user is interested in.
This is faster and less cpu and bus intensive than manually polling.
This adds this autopoll capability to the pn533 driver.

Cc: Johan Hovold <johan@kernel.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 21:05:26 -07:00
Lars Poeschel c656aa4c27 nfc: pn533: add UART phy driver
This adds the UART phy interface for the pn533 driver.
The pn533 driver can be used through UART interface this way.
It is implemented as a serdev device.

Cc: Johan Hovold <johan@kernel.org>
Cc: Claudiu Beznea <Claudiu.Beznea@microchip.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 21:05:26 -07:00
Lars Poeschel 843cc92ed3 nfc: pn533: Split pn533 init & nfc_register
There is a problem in the initialisation and setup of the pn533: It
registers with nfc too early. It could happen, that it finished
registering with nfc and someone starts using it. But setup of the pn533
is not yet finished. Bad or at least unintended things could happen.
So I split out nfc registering (and unregistering) to seperate functions
that have to be called late in probe then.
i2c requires a bit more love: i2c requests an irq in it's probe
function. 'Commit 32ecc75ded ("NFC: pn533: change order operations in
dev registation")' shows, this can not happen too early. An irq can be
served before structs are fully initialized. The way chosen to prevent
this is to request the irq after nfc_alloc_device initialized the
structs, but before nfc_register_device. So there is now this
pn532_i2c_nfc_alloc function.

Cc: Johan Hovold <johan@kernel.org>
Cc: Claudiu Beznea <Claudiu.Beznea@microchip.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 21:05:26 -07:00
Lars Poeschel 0bf2840ccc nfc: pn533: Add dev_up/dev_down hooks to phy_ops
This adds hooks for dev_up and dev_down to the phy_ops. They are
optional.
The idea is to inform the phy driver when the nfc chip is really going
to be used. When it is not used, the phy driver can suspend it's
interface to the nfc chip to save some power. The nfc chip is considered
not in use before dev_up and after dev_down.

Cc: Johan Hovold <johan@kernel.org>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 21:05:26 -07:00
Lars Poeschel 3c57b39547 nfc: pn532: Add uart phy docs and rename it
This adds documentation about the uart phy to the pn532 binding doc. As
the filename "pn533-i2c.txt" is not appropriate any more, rename it to
the more general "pn532.txt".
This also documents the deprecation of the compatible strings ending
with "...-i2c".

Cc: Johan Hovold <johan@kernel.org>
Cc: Simon Horman <horms@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 21:05:26 -07:00
Lars Poeschel 3d5f3a67e4 nfc: pn533: i2c: "pn532" as dt compatible string
It is favourable to have one unified compatible string for devices that
have multiple interfaces. So this adds simply "pn532" as the devicetree
binding compatible string and makes a note that the old ones are
deprecated.

Cc: Johan Hovold <johan@kernel.org>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 21:05:26 -07:00
Alexander Duyck daee5598e4 e1000e: Drop unnecessary __E1000_DOWN bit twiddling
Since we no longer check for __E1000_DOWN in e1000e_close we can drop the
spot where we were restoring the bit. This saves us a bit of unnecessary
complexity.

Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-10-29 21:02:03 -07:00
Alexander Duyck a702381940 e1000e: Use rtnl_lock to prevent race conditions between net and pci/pm
This patch is meant to address possible race conditions that can exist
between network configuration and power management. A similar issue was
fixed for igb in commit 9474933caf ("igb: close/suspend race in
netif_device_detach").

In addition it consolidates the code so that the PCI error handling code
will essentially perform the power management freeze on the device prior to
attempting a reset, and will thaw the device afterwards if that is what it
is planning to do. Otherwise when we call close on the interface it should
see it is detached and not attempt to call the logic to down the interface
and free the IRQs again.

From what I can tell the check that was adding the check for __E1000_DOWN
in e1000e_close was added when runtime power management was added. However
it should not be relevant for us as we perform a call to
pm_runtime_get_sync before we call e1000_down/free_irq so it should always
be back up before we call into this anyway.

Reported-by: Morumuri Srivalli <smorumu1@in.ibm.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Tested-by: David Dai <zdai@linux.vnet.ibm.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2019-10-29 20:59:45 -07:00
David S. Miller 6f74a55d49 mlx5-fixes-2019-10-24
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Merge tag 'mlx5-fixes-2019-10-24' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
Mellanox, mlx5 fixes 2019-10-24

This series introduces misc fixes to mlx5 driver.

v1->v2:
 - Dropped the kTLS counter documentation patch, Tariq will fix it and
   send it later.
 - Added a new fix for link speed mode reporting.
  ('net/mlx5e: Initialize link modes bitmap on stack')

For -stable v4.14
  ('net/mlx5e: Fix handling of compressed CQEs in case of low NAPI budget')

For -stable v4.19
  ('net/mlx5e: Fix ethtool self test: link speed')

For -stable v5.2
  ('net/mlx5: Fix flow counter list auto bits struct')
  ('net/mlx5: Fix rtable reference leak')

For -stable v5.3
  ('net/mlx5e: Remove incorrect match criteria assignment line')
  ('net/mlx5e: Determine source port properly for vlan push action')
  ('net/mlx5e: Initialize link modes bitmap on stack')
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 20:59:11 -07:00
Sasha Neftin 914ee9c436 e1000e: Add support for Comet Lake
Add devices ID's for the next LOM generations that will be
available on the next Intel Client platform (Comet Lake)
This patch provides the initial support for these devices

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-10-29 20:34:12 -07:00
Nikolay Aleksandrov 8b73018fe4 net: rtnetlink: fix a typo fbd -> fdb
A simple typo fix in the nl error message (fbd -> fdb).

CC: David Ahern <dsahern@gmail.com>
Fixes: 8c6e137fbc ("rtnetlink: Update rtnl_fdb_dump for strict data checking")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:13:38 -07:00
David S. Miller 9014fc319b Merge branch 'bridge-fdbs-bitops'
Nikolay Aleksandrov says:

====================
net: bridge: convert fdbs to use bitops

We'd like to have a well-defined behaviour when changing fdb flags. The
problem is that we've added new fields which are changed from all
contexts without any locking. We are aware of the bit test/change races
and these are fine (we can remove them later), but it is considered
undefined behaviour to change bitfields from multiple threads and also
on some architectures that can result in unexpected results,
specifically when all fields between the changed ones are also
bitfields. The conversion to bitops shows the intent clearly and
makes them use functions with well-defined behaviour in such cases.
There is no overhead for the fast-path, the bit changing functions are
used only in special cases when learning and in the slow path.
In addition this conversion allows us to simplify fdb flag handling and
avoid bugs for future bits (e.g. a forgetting to clear the new bit when
allocating a new fdb). All bridge selftests passed, also tried all of the
converted bits manually in a VM.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:12:49 -07:00
Nikolay Aleksandrov 3fb01a31af net: bridge: fdb: set flags directly in fdb_create
No need to have separate arguments for each flag, just set the flags to
whatever was passed to fdb_create() before the fdb is published.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:12:49 -07:00
Nikolay Aleksandrov d38c6e3db0 net: bridge: fdb: convert offloaded to use bitops
Convert the offloaded field to a flag and use bitops.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:12:49 -07:00
Nikolay Aleksandrov b5cd9f7c42 net: bridge: fdb: convert added_by_external_learn to use bitops
Convert the added_by_external_learn field to a flag and use bitops.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:12:49 -07:00
Nikolay Aleksandrov ac3ca6af44 net: bridge: fdb: convert added_by_user to bitops
Straight-forward convert of the added_by_user field to bitops.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:12:49 -07:00
Nikolay Aleksandrov e0458d9a73 net: bridge: fdb: convert is_sticky to bitops
Straight-forward convert of the is_sticky field to bitops.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:12:49 -07:00
Nikolay Aleksandrov 29e63fffd6 net: bridge: fdb: convert is_static to bitops
Convert the is_static to bitops, make use of the combined
test_and_set/clear_bit to simplify expressions in fdb_add_entry.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:12:49 -07:00
Nikolay Aleksandrov 6869c3b02b net: bridge: fdb: convert is_local to bitops
The patch adds a new fdb flags field in the hole between the two cache
lines and uses it to convert is_local to bitops.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:12:49 -07:00
Ursula Braun 8466a57dfb net/smc: remove unneeded include for smc.h
The only smc-related reference in net/sock.h is struct smc_hashinfo.
But just its address is refered to. Thus there is no need for the
include of net/smc.h. Remove it.

Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:11:15 -07:00
Ursula Braun 301428ea37 net/smc: fix refcounting for non-blocking connect()
If a nonblocking socket is immediately closed after connect(),
the connect worker may not have started. This results in a refcount
problem, since sock_hold() is called from the connect worker.
This patch moves the sock_hold in front of the connect worker
scheduling.

Reported-by: syzbot+4c063e6dea39e4b79f29@syzkaller.appspotmail.com
Fixes: 50717a37db ("net/smc: nonblocking connect rework")
Reviewed-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 18:09:50 -07:00