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2020-07-31mac80211: use same flag everywhere to avoid sequence number overwriteMathy Vanhoef
Use the IEEE80211_TX_CTRL_NO_SEQNO flag in ieee80211_tx_info to mark probe requests whose sequence number must not be overwritten. This provides consistency with the radiotap flag that can be set to indicate that the sequence number of an injected frame should not be overwritten. Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@kuleuven.be> Link: https://lore.kernel.org/r/20200723100153.31631-4-Mathy.Vanhoef@kuleuven.be Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31mac80211: do not overwrite the sequence number if requestedMathy Vanhoef
Check if the Tx control flag is set to prevent sequence number overwrites, and if so, do not assign a new sequence number to the transmitted frame. Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@kuleuven.be> Link: https://lore.kernel.org/r/20200723100153.31631-3-Mathy.Vanhoef@kuleuven.be Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31mac80211: add radiotap flag to prevent sequence number overwriteMathy Vanhoef
The radiotap specification contains a flag to indicate that the sequence number of an injected frame should not be overwritten. Parse this flag and define and set a corresponding Tx control flag. Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@kuleuven.be> Link: https://lore.kernel.org/r/20200723100153.31631-2-Mathy.Vanhoef@kuleuven.be Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31mac80211: never drop injected frames even if normally not allowedMathy Vanhoef
In ieee80211_tx_dequeue there is a check to see if the dequeued frame is allowed in the current state. Injected frames that are normally not allowed are being be dropped here. Fix this by checking if a frame was injected and if so always allowing it. Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@kuleuven.be> Link: https://lore.kernel.org/r/20200723100153.31631-1-Mathy.Vanhoef@kuleuven.be Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211: Add support to advertize OCV supportVeerendranath Jakkam
Add a new feature flag that drivers can use to advertize support for Operating Channel Validation (OCV) when using driver's SME for RSNA handshakes. Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org> Link: https://lore.kernel.org/r/20200720074225.8990-1-vjakkam@codeaurora.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211/mac80211: avoid bss color setting in non-HE modesP Praneesh
Adding bss-color configuration is only valid in HE mode. Earlier we have enabled it by default, irrespective of capabilities/mode. Fix that. Reported-by: kernel test robot <lkp@intel.com> Reported-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by: P Praneesh <ppranees@codeaurora.org> Link: https://lore.kernel.org/r/1594262781-21444-1-git-send-email-ppranees@codeaurora.org [fix up commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31mac80211: calculate skb hash early when using itxqFelix Fietkau
This avoids flow separation issues when using software encryption. Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://lore.kernel.org/r/20200726130947.88145-2-nbd@nbd.name Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31net/fq_impl: use skb_get_hash instead of skb_get_hash_perturbFelix Fietkau
This avoids unnecessarily regenerating the skb flow hash Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://lore.kernel.org/r/20200726130947.88145-1-nbd@nbd.name [small commit message fixup] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31mac80211: improve AQL tx airtime estimationFelix Fietkau
AQL does not take into account that most HT/VHT/HE traffic is A-MPDU aggregated. Because of that, the per-packet airtime overhead is vastly overestimated. Improve it by assuming an average aggregation length of 16 for non-legacy traffic if not using the VO AC queue. This should improve performance with high data rates, especially with multiple stations Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://lore.kernel.org/r/20200724182816.18678-1-nbd@nbd.name Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211/mac80211: add connected to auth server to station infoMarkus Theil
This patch adds the necessary bits to later query the auth server flag for every peer from iw. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200611140238.427461-2-markus.theil@tu-ilmenau.de Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211/mac80211: add connected to auth server to meshconfMarkus Theil
Besides information about num of peerings and gate connectivity, the mesh formation byte also contains a flag for authentication server connectivity, that currently cannot be set in the mesh conf. This patch adds this capability, which is necessary to implement 802.1X authentication in mesh mode. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200611140238.427461-1-markus.theil@tu-ilmenau.de Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211/mac80211: add mesh_param "mesh_nolearn" to skip path discoveryLinus Lüssing
Currently, before being able to forward a packet between two 802.11s nodes, both a PLINK handshake is performed upon receiving a beacon and then later a PREQ/PREP exchange for path discovery is performed on demand upon receiving a data frame to forward. When running a mesh protocol on top of an 802.11s interface, like batman-adv, we do not need the multi-hop mesh routing capabilities of 802.11s and usually set mesh_fwding=0. However, even with mesh_fwding=0 the PREQ/PREP path discovery is still performed on demand. Even though in this scenario the next hop PREQ/PREP will determine is always the direct 11s neighbor node. The new mesh_nolearn parameter allows to skip the PREQ/PREP exchange in this scenario, leading to a reduced delay, reduced packet buffering and simplifies HWMP in general. mesh_nolearn is still rather conservative in that if the packet destination is not a direct 11s neighbor, it will fall back to PREQ/PREP path discovery. For normal, multi-hop 802.11s mesh routing it is usually not advisable to enable mesh_nolearn as a transmission to a direct but distant neighbor might be worse than reaching that same node via a more robust / higher throughput etc. multi-hop path. Cc: Sven Eckelmann <sven@narfation.org> Cc: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Linus Lüssing <ll@simonwunderlich.de> Link: https://lore.kernel.org/r/20200617073034.26149-1-linus.luessing@c0d3.blue [fix nl80211 policy to range 0/1 only] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211: allow the low level driver to flush the BSS tableEmmanuel Grumbach
The low level driver adds its own opaque information in the BSS table in the cfg80211_bss structure. The low level driver may need to signal that this information is no longer relevant and needs to be recreated. Add an API to allow the low level driver to do that. iwlwifi needs this because it keeps there an information about the firmware's internal clock. This is kept in mac80211's struct ieee80211_bss::sync_device_ts. This information is populated while we scan, we add the internal firmware's clock to each beacon which allows us to program the firmware correctly after association so that it'll know when (in terms of its internal clock) the DTIM and TBTT will happen. When the firmware is reset this internal clock is reset as well and ieee80211_bss::sync_device_ts is no longer accurate. iwlwifi will call this new API any time the firmware is started. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Link: https://lore.kernel.org/r/20200625111524.3992-1-emmanuel.grumbach@intel.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31mac80211: Use fallthrough pseudo-keywordGustavo A. R. Silva
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200707204548.GA9320@embeddedor Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31nl80211: Simplify error handling path in 'nl80211_trigger_scan()'Christophe JAILLET
Re-write the end of 'nl80211_trigger_scan()' with a more standard, easy to understand and future proof version. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20200712173551.274448-1-christophe.jaillet@wanadoo.fr Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31nl80211: Remove a misleading label in 'nl80211_trigger_scan()'Christophe JAILLET
Since commit 5fe231e87372 ("cfg80211: vastly simplify locking"), the 'unlock' label at the end of 'nl80211_trigger_scan()' is useless and misleading, because nothing is unlocked there. Direct return can be used instead of 'err = -<error code>; goto unlock;' construction. Remove this label and simplify code accordingly. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20200712173539.274395-1-christophe.jaillet@wanadoo.fr Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31net/wireless: regulatory.h: drop duplicate word in commentRandy Dunlap
Drop doubled word "of" in a comment. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: netdev@vger.kernel.org Cc: Kalle Valo <kvalo@codeaurora.org> Cc: linux-wireless@vger.kernel.org Cc: Johannes Berg <johannes@sipsolutions.net> Link: https://lore.kernel.org/r/20200715164325.9109-5-rdunlap@infradead.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31net/wireless: mac80211.h: drop duplicate words in commentsRandy Dunlap
Drop doubled words "are" and "by" in comments. Change doubled "to to" to "to the". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: netdev@vger.kernel.org Cc: Kalle Valo <kvalo@codeaurora.org> Cc: linux-wireless@vger.kernel.org Cc: Johannes Berg <johannes@sipsolutions.net> Link: https://lore.kernel.org/r/20200715164325.9109-4-rdunlap@infradead.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31net/wireless: cfg80211.h: drop duplicate words in commentsRandy Dunlap
Drop doubled word "by" in a comment. Change "operate in in" to "operate with in" as is used below. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: netdev@vger.kernel.org Cc: Kalle Valo <kvalo@codeaurora.org> Cc: linux-wireless@vger.kernel.org Cc: Johannes Berg <johannes@sipsolutions.net> Link: https://lore.kernel.org/r/20200715164325.9109-3-rdunlap@infradead.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31net/wireless: wireless.h: drop duplicate word in commentsRandy Dunlap
Drop doubled word "threshold" in a comment. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: netdev@vger.kernel.org Cc: Kalle Valo <kvalo@codeaurora.org> Cc: linux-wireless@vger.kernel.org Cc: Johannes Berg <johannes@sipsolutions.net> Link: https://lore.kernel.org/r/20200715164325.9109-2-rdunlap@infradead.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31net/wireless: nl80211.h: drop duplicate words in commentsRandy Dunlap
Drop doubled words in several comments. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: netdev@vger.kernel.org Cc: Kalle Valo <kvalo@codeaurora.org> Cc: linux-wireless@vger.kernel.org Cc: Johannes Berg <johannes@sipsolutions.net> Link: https://lore.kernel.org/r/20200715164325.9109-1-rdunlap@infradead.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211: allow vendor dumpit to terminate by returning 0Julian Squires
nl80211 vendor netlink dumpit, like netlink_callback->dump, should signal successful completion by returning 0. Currently, that will just cause dumpit to be called again, possibly many times until an error occurs. Since skb->len is never going to be 0 by the time dumpit is called, the only way for dumpit to signal completion is by returning an error. If it returns a positive value, the current message is cancelled, but that positive value is returned and nl80211_vendor_cmd_dump gets called again. Fix that by passing a return value of 0 through. Signed-off-by: Julian Squires <julian@cipht.net> Link: https://lore.kernel.org/r/20200720145033.401307-1-julian@cipht.net [reword commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31mac80211: remove the need for variable rates_idxColin Ian King
Currently rates_idx is being initialized with the value -1 and this value is never read so the initialization is redundant and can be removed. The next time the variable is used it is assigned a value that is returned a few statements later. Just return i - 1 and remove the need for rates_idx. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20200722153830.959010-1-colin.king@canonical.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31nl80211: S1G band and channel definitionsThomas Pedersen
Gives drivers the definitions needed to advertise support for S1G bands. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200602062247.23212-1-thomas@adapt-ip.com Link: https://lore.kernel.org/r/20200731055636.795173-1-thomas@adapt-ip.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31KVM: LAPIC: Set the TDCR settable bitsWanpeng Li
It is a little different between Intel and AMD, Intel's bit 2 is 0 and AMD is reserved. On bare-metal, Intel will refuse to set APIC_TDCR once bits except 0, 1, 3 are setting, however, AMD will accept bits 0, 1, 3 and ignore other bits setting as patch does. Before the patch, we can get back anything what we set to the APIC_TDCR, this patch improves it. Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1596165141-28874-2-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-31KVM: SVM: Fix disable pause loop exit/pause filtering capability on SVMWanpeng Li
'Commit 8566ac8b8e7c ("KVM: SVM: Implement pause loop exit logic in SVM")' drops disable pause loop exit/pause filtering capability completely, I guess it is a merge fault by Radim since disable vmexits capabilities and pause loop exit for SVM patchsets are merged at the same time. This patch reintroduces the disable pause loop exit/pause filtering capability support. Reported-by: Haiwei Li <lihaiwei@tencent.com> Tested-by: Haiwei Li <lihaiwei@tencent.com> Fixes: 8566ac8b ("KVM: SVM: Implement pause loop exit logic in SVM") Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1596165141-28874-3-git-send-email-wanpengli@tencent.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-31KVM: LAPIC: Prevent setting the tscdeadline timer if the lapic is hw disabledWanpeng Li
Prevent setting the tscdeadline timer if the lapic is hw disabled. Fixes: bce87cce88 (KVM: x86: consolidate different ways to test for in-kernel LAPIC) Cc: <stable@vger.kernel.org> Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1596165141-28874-1-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-31Bluetooth: use the proper scan params when conn is pendingAlain Michaud
When an LE connection is requested and an RPA update is needed via hci_connect_le_scan, the default scanning parameters are used rather than the connect parameters. This leads to significant delays in the connection establishment process when using lower duty cycle scanning parameters. The patch simply looks at the pended connection list when trying to determine which scanning parameters should be used. Before: < HCI Command: LE Set Extended Scan Parameters (0x08|0x0041) plen 8                             #378 [hci0] 1659.247156         Own address type: Public (0x00)         Filter policy: Ignore not in white list (0x01)         PHYs: 0x01         Entry 0: LE 1M           Type: Passive (0x00)           Interval: 367.500 msec (0x024c)           Window: 37.500 msec (0x003c) After: < HCI Command: LE Set Extended Scan Parameters (0x08|0x0041) plen 8                               #39 [hci0] 7.422109         Own address type: Public (0x00)         Filter policy: Ignore not in white list (0x01)         PHYs: 0x01         Entry 0: LE 1M           Type: Passive (0x00)           Interval: 60.000 msec (0x0060)           Window: 60.000 msec (0x0060) Signed-off-by: Alain Michaud <alainm@chromium.org> Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org> Reviewed-by: Yu Liu <yudiliu@google.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-31Merge tag 'drm-intel-next-2020-07-15' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-next drm/i915 features for v5.9, batch #2 Highlights: - Very early DG1 enabling (Abdiel, Lucas, Anusha) Gem/GT: - Fix spinlock recursion on signaling a signaled request (Chris) - Perf: Use GTT when saving/restoring engine GPR (Umesh Nerlige Ramappa) - SSEU refactoring, debugfs move under gt/ (Daniele, Venkata Sandeep Dhanalakota) - Various GT refactoring and cleanup, preparation for future changes (Daniele) - Adjust HuC state accordingly after GuC fetch error (Michał Winiarski) - UC debugfs updates (Michał Winiarski) - Only revoke the GGTT mmappings on aperture detiling changes (Chris) - Only revoke mmap handlers if active (Chris) - Split the context's obj:vma lut into its own mutex (Chris) - Various memory, mmap and performance optimisations (Chris) - Improve system stability in case of false CS events (Chris) - Various refactorings and cleanup (Chris) - Always reset the engine on execlist failures (Chris) - Trace placement of timeline HWSP (Chris) - Update dma-attributes for our sg DMA (Chris) Display: - TGL CDCLK workaround tweaks to unbreak 8K display support (Stanislav) - A number of FBC fixes, along with i865 FBC enabling (Ville) - Validate MST modes against PBN limits (Lyude, Shawn Lee) - Do not access non-existing swizzle registers (Lucas) - Revert GEN11+ HBR3 rate fix that caused issues on TGL (Matt Atwood) - Update TGL+ combo phy initialization to match spec update (José) - Fix HDCP Content Protection property state machine (Anshuman) - Fix HDCP revoked keys handling (Ram) - Improve DDI BUF status checks and waits (Manasi) - Various SDVO+HDMI+DVI fixes around colorimetry, clocking, pixel repeat etc. (Ville) - DP voltage swing function refactoring (José) - WARN if max vswing/pre-emphasis violates the DP spec (Ville) Other: - Add new EHL PCI IDs (José) - Unify struct intel_digital_port variable naming (Lucas) - Various taint updates to aid debugging and improve CI (Michał Winiarski) - Straggler conversions to new mmio register accessors (Daniele) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87a70029vz.fsf@intel.com
2020-07-30Merge tag 'drm-fixes-2020-07-31' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull more drm fixes from Dave Airlie: "As mentioned previously this contains the nouveau regression fix. amdgpu had three fixes outstanding as well, one revert, an info leak and use after free. The use after free is a bit trickier than I'd like, and I've personally gone over it to confirm I'm happy that it is doing what it says. nouveau: - final modifiers regression fix amdgpu: - Revert a fix which caused other regressions - Fix potential kernel info leak - Fix a use-after-free bug that was uncovered by another change in 5.7" * tag 'drm-fixes-2020-07-31' of git://anongit.freedesktop.org/drm/drm: drm/nouveau: Accept 'legacy' format modifiers Revert "drm/amdgpu: Fix NULL dereference in dpm sysfs handlers" drm/amd/display: Clear dm_state for fast updates drm/amdgpu: Prevent kernel-infoleak in amdgpu_info_ioctl()
2020-07-31Merge tag 'amd-drm-fixes-5.8-2020-07-30' of ↵Dave Airlie
git://people.freedesktop.org/~agd5f/linux into drm-fixes amd-drm-fixes-5.8-2020-07-30: amdgpu: - Revert a fix which caused other regressions - Fix potential kernel info leak - Fix a use-after-free bug that was uncovered by another change in 5.7 Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200730154338.244104-1-alexander.deucher@amd.com
2020-07-31drm/nouveau: Accept 'legacy' format modifiersJames Jones
Accept the DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK() family of modifiers to handle broken userspace Xorg modesetting and Mesa drivers. Existing Mesa drivers are still aware of only these older format modifiers which do not differentiate between different variations of the block linear layout. When the format modifier support flag was flipped in the nouveau kernel driver, the X.org modesetting driver began attempting to use its format modifier-enabled framebuffer path. Because the set of format modifiers advertised by the kernel prior to this change do not intersect with the set of format modifiers advertised by Mesa, allocating GBM buffers using format modifiers fails and the modesetting driver falls back to non-modifier allocation. However, it still later queries the modifier of the GBM buffer when creating its DRM-KMS framebuffer object, receives the old-format modifier from Mesa, and attempts to create a framebuffer with it. Since the kernel is still not aware of these formats, this fails. Userspace should not be attempting to query format modifiers of GBM buffers allocated with a non- format-modifier-aware allocation path, but to avoid breaking existing userspace behavior, this change accepts the old-style format modifiers when creating framebuffers and applying them to planes by translating them to the equivalent new-style modifier. To accomplish this, some layout parameters must be assumed to match properties of the device targeted by the relevant ioctls. To avoid perpetuating misuse of the old-style modifiers, this change does not advertise support for them. Doing so would imply compatibility between devices with incompatible memory layouts. Tested with Xorg 1.20 modesetting driver, weston@c46c70dac84a4b3030cd05b380f9f410536690fc, gnome & KDE wayland desktops from Ubuntu 18.04, and sway 1.5 Reported-by: Kirill A. Shutemov <kirill@shutemov.name> Fixes: fa4f4c213f5f ("drm/nouveau/kms: Support NVIDIA format modifiers") Link: https://lkml.org/lkml/2020/6/30/1251 Signed-off-by: James Jones <jajones@nvidia.com> Acked-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2020-07-31csky: Add arch_show_interrupts for IPI interruptsGuo Ren
Here is the result: cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 15: 1348 1299 952 1076 C-SKY SMP Intc 15 IPI Interrupt 16: 1203 1825 1598 1307 C-SKY SMP Intc 16 csky_mp_timer 43: 292 0 0 0 C-SKY SMP Intc 43 ttyS0 57: 106 0 0 0 C-SKY SMP Intc 57 virtio0 IPI0: 0 0 0 0 Empty interrupts IPI1: 19 41 45 27 Rescheduling interrupts IPI2: 1330 1259 908 1050 Function call interrupts IPI3: 0 0 0 0 Irq work interrupts Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: Add irq_work supportGuo Ren
Running work in hardware interrupt context for csky. Implement: - arch_irq_work_raise() - arch_irq_work_has_interrupt() Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: Fixup warning by EXPORT_SYMBOL(kmap)Guo Ren
This a wrong code, and no kmap symbol for export. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-30net/mlx5e: fix bpf_prog reference count leaks in mlx5e_alloc_rqXin Xiong
The function invokes bpf_prog_inc(), which increases the reference count of a bpf_prog object "rq->xdp_prog" if the object isn't NULL. The refcount leak issues take place in two error handling paths. When either mlx5_wq_ll_create() or mlx5_wq_cyc_create() fails, the function simply returns the error code and forgets to drop the reference count increased earlier, causing a reference count leak of "rq->xdp_prog". Fix this issue by jumping to the error handling path err_rq_wq_destroy while either function fails. Fixes: 422d4c401edd ("net/mlx5e: RX, Split WQ objects for different RQ types") Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn> Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-30net/mlx5e: E-Switch, Specify flow_source for rule with no in_portJianbo Liu
The flow_source must be specified, even for rule without matching source vport, because some actions are only allowed in uplink. Otherwise, rule can't be offloaded and firmware syndrome happens. Fixes: 6fb0701a9cfa ("net/mlx5: E-Switch, Add support for offloading rules with no in_port") Signed-off-by: Jianbo Liu <jianbol@mellanox.com> Reviewed-by: Chris Mi <chrism@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-30net/mlx5e: E-Switch, Add misc bit when misc fields changed for mirroringJianbo Liu
The modified flow_context fields in FTE must be indicated in modify_enable bitmask. Previously, the misc bit in modify_enable is always set as source vport must be set for each rule. So, when parsing vxlan/gre/geneve/qinq rules, this bit is not set because those are all from the same misc fileds that source vport fields are located at, and we don't need to set the indicator twice. After adding per vport tables for mirroring, misc bit is not set, then firmware syndrome happens. To fix it, set the bit wherever misc fileds are changed. This also makes it unnecessary to check misc fields and set the misc bit accordingly in metadata matching, so here remove it. Besides, flow_source must be specified for uplink because firmware will check it and some actions are only allowed for packets received from uplink. Fixes: 96e326878fa5 ("net/mlx5e: Eswitch, Use per vport tables for mirroring") Signed-off-by: Jianbo Liu <jianbol@mellanox.com> Reviewed-by: Chris Mi <chrism@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-30net/mlx5e: CT: Support restore ipv6 tunnelJianbo Liu
Currently the driver restores only IPv4 tunnel headers. Add support for restoring IPv6 tunnel header. Fixes: b8ce90370977 ("net/mlx5e: Restore tunnel metadata on miss") Signed-off-by: Jianbo Liu <jianbol@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-31csky: Set CONFIG_NR_CPU 4 as defaultGuo Ren
The C860 processors support 4 cores smp for maximum, so set NR_CPU to 4 as default Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: Use top-down mmap layoutGuo Ren
Follow riscv mmap layout with commit "riscv: make mmap allocation top-down by default (54c95a11cc1b)". Before: cat /proc/self/maps 00008000-000dc000 r-xp 00000000 fe:00 17 /bin/busybox 000dc000-000dd000 r--p 000d3000 fe:00 17 /bin/busybox 000dd000-000de000 rw-p 000d4000 fe:00 17 /bin/busybox 2aaa8000-2aac6000 r-xp 00000000 fe:00 196 /lib/ld-2.28.9000.so 2aac6000-2aac7000 r-xp 00000000 00:00 0 [vdso] 2aac7000-2aac8000 r--p 0001e000 fe:00 196 /lib/ld-2.28.9000.so 2aac8000-2aac9000 rw-p 0001f000 fe:00 196 /lib/ld-2.28.9000.so 2aac9000-2aad9000 r-xp 00000000 fe:00 219 /lib/libresolv-2.28.9000.so 2aad9000-2aada000 r--p 0000f000 fe:00 219 /lib/libresolv-2.28.9000.so 2aada000-2aadb000 rw-p 00010000 fe:00 219 /lib/libresolv-2.28.9000.so 2aadb000-2aadd000 rw-p 00000000 00:00 0 2aadd000-2ac27000 r-xp 00000000 fe:00 203 /lib/libc-2.28.9000.so 2ac27000-2ac28000 ---p 0014a000 fe:00 203 /lib/libc-2.28.9000.so 2ac28000-2ac2a000 r--p 0014a000 fe:00 203 /lib/libc-2.28.9000.so 2ac2a000-2ac2b000 rw-p 0014c000 fe:00 203 /lib/libc-2.28.9000.so 2ac2b000-2ac2e000 rw-p 00000000 00:00 0 7fb99000-7fbba000 rwxp 00000000 00:00 0 [stack] After: cat /proc/self/maps 00008000-000dc000 r-xp 00000000 fe:00 17 /bin/busybox 000dc000-000dd000 r--p 000d3000 fe:00 17 /bin/busybox 000dd000-000de000 rw-p 000d4000 fe:00 17 /bin/busybox 77e13000-77f5d000 r-xp 00000000 fe:00 203 /lib/libc-2.28.9000.so 77f5d000-77f5e000 ---p 0014a000 fe:00 203 /lib/libc-2.28.9000.so 77f5e000-77f60000 r--p 0014a000 fe:00 203 /lib/libc-2.28.9000.so 77f60000-77f61000 rw-p 0014c000 fe:00 203 /lib/libc-2.28.9000.so 77f61000-77f66000 rw-p 00000000 00:00 0 77f66000-77f76000 r-xp 00000000 fe:00 219 /lib/libresolv-2.28.9000.so 77f76000-77f77000 r--p 0000f000 fe:00 219 /lib/libresolv-2.28.9000.so 77f77000-77f78000 rw-p 00010000 fe:00 219 /lib/libresolv-2.28.9000.so 77f78000-77f96000 r-xp 00000000 fe:00 196 /lib/ld-2.28.9000.so 77f96000-77f97000 r-xp 00000000 00:00 0 [vdso] 77f97000-77f98000 r--p 0001e000 fe:00 196 /lib/ld-2.28.9000.so 77f98000-77f99000 rw-p 0001f000 fe:00 196 /lib/ld-2.28.9000.so 7fd7b000-7fd9c000 rwxp 00000000 00:00 0 [stack] Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: Optimize the trap processing flowGuo Ren
- Seperate different trap functions - Add trap_no() - Remove panic code print - Redesign die_if_kerenl to die with riscv's - Print exact trap info for app segment fault [ 17.389321] gzip[126]: unhandled signal 11 code 0x3 at 0x0007835a in busybox[8000+d4000] [ 17.393882] [ 17.393882] CURRENT PROCESS: [ 17.393882] [ 17.394309] COMM=gzip PID=126 [ 17.394513] TEXT=00008000-000db2e4 DATA=000dcf14-000dd1ad BSS=000dd1ad-000ff000 [ 17.395499] USER-STACK=7f888e50 KERNEL-STACK=bf130300 [ 17.395499] [ 17.396801] PC: 0x0007835a (0x7835a) [ 17.397048] LR: 0x000058b4 (0x58b4) [ 17.397285] SP: 0xbe519f68 [ 17.397555] orig_a0: 0x00002852 [ 17.397886] PSR: 0x00020341 [ 17.398356] a0: 0x00002852 a1: 0x000f2f5a a2: 0x0000d7ae a3: 0x0000005d [ 17.399289] r4: 0x000de150 r5: 0x00000002 r6: 0x00000102 r7: 0x00007efa [ 17.399800] r8: 0x7f888bc4 r9: 0x00000001 r10: 0x000002eb r11: 0x0000aac1 [ 17.400166] r12: 0x00002ef2 r13: 0x00000007 r15: 0x000058b4 [ 17.400531] r16: 0x0000004c r17: 0x00000031 r18: 0x000f5816 r19: 0x000e8068 [ 17.401006] r20: 0x000f5818 r21: 0x000e8068 r22: 0x000f5918 r23: 0x90000000 [ 17.401721] r24: 0x00000031 r25: 0x000000c8 r26: 0x00000000 r27: 0x00000000 [ 17.402199] r28: 0x2ac2a000 r29: 0x00000000 r30: 0x00000000 tls: 0x2aadbaa8 [ 17.402686] hi: 0x00120340 lo: 0x7f888bec /etc/init.ci/ntfs3g_run: line 61: 126 Segmentation fault gzip -c -9 /mnt/test.bin > /mnt/test_bin.gz Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: Add support for function error injectionGuo Ren
Inspired by the commit 42d038c4fb00 ("arm64: Add support for function error injection"), this patch supports function error injection for csky. This patch mainly support two functions: one is regs_set_return_value() which is used to overwrite the return value; the another function is override_function_with_return() which is to override the probed function returning and jump to its caller. Test log: cd /sys/kernel/debug/fail_function/ echo sys_clone > inject echo 100 > probability echo 1 > interval ls / [ 108.644163] FAULT_INJECTION: forcing a failure. [ 108.644163] name fail_function, interval 1, probability 100, space 0, times 1 [ 108.647799] CPU: 0 PID: 104 Comm: sh Not tainted 5.8.0-rc5+ #46 [ 108.648384] Call Trace: [ 108.649339] [<8005eed4>] walk_stackframe+0x0/0xf0 [ 108.649679] [<8005f16a>] show_stack+0x32/0x5c [ 108.649927] [<8040f9d2>] dump_stack+0x6e/0x9c [ 108.650271] [<80406f7e>] should_fail+0x15e/0x1ac [ 108.650720] [<80118ba8>] fei_kprobe_handler+0x28/0x5c [ 108.651519] [<80754110>] kprobe_breakpoint_handler+0x144/0x1cc [ 108.652289] [<8005d6da>] trap_c+0x8e/0x110 [ 108.652816] [<8005ce8c>] csky_trap+0x5c/0x70 -sh: can't fork: Invalid argument Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: Fixup kprobes handler couldn't change pcGuo Ren
The "Changing Execution Path" section in the Documentation/kprobes.txt said: Since kprobes can probe into a running kernel code, it can change the register set, including instruction pointer. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: Fixup duplicated restore sp in RESTORE_REGS_FTRACEGuo Ren
There is no user return for RESTORE_REGS_FTRACE, so it's no need to save sp into ss0 as RESTORE_REGS_ALL. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: Add cpu feature register hint for smpGuo Ren
CPU features registers are setup by customers' bootloader, but Linux must help transfer them from the primary to secondary cores. This patch add hint2 CPU feature register supported. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: Add SECCOMP_FILTER supportedGuo Ren
secure_computing() is called first in syscall_trace_enter() so that a system call will be aborted quickly without doing succeeding syscall tracing if seccomp rules want to deny that system call. TODO: - Update https://github.com/seccomp/libseccomp csky support Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-31csky: remove unusued thread_saved_pc and *_segments functions/macrosTobias Klauser
These are used nowhere in the tree (except for some architectures which define them for their own use) and were already removed for other architectures in: commit 6474924e2b5d ("arch: remove unused macro/function thread_saved_pc()") commit c17c02040bf0 ("arch: remove unused *_segments() macros/functions") Remove them from arch/csky as well. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Guo Ren <guoren@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de>
2020-07-30scsi: scsi_transport_srp: Sanitize scsi_target_block/unblock sequencesHannes Reinecke
The SCSI midlayer does not allow state transitions from SDEV_BLOCK to SDEV_BLOCK so calling scsi_target_block() from __rport_fast_io_fail() is wrong as the port is already blocked. Similarly, we don't need to call scsi_target_unblock() afterwards as the function has already done this. Link: https://lore.kernel.org/r/20200728134833.42547-1-hare@suse.de Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Laurence Oberman <loberman@redhat.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-30scsi: ufs-mediatek: Apply DELAY_AFTER_LPM quirk to Micron devicesStanley Chu
Micron UFS devices require DELAY_AFTER_LPM device quirk in MediaTek platforms. Link: https://lore.kernel.org/r/20200729051840.31318-3-stanley.chu@mediatek.com Acked-by: Avri Altman <Avri.Altman@wdc.com> Reviewed-by: Andy Teng <andy.teng@mediatek.com> Reviewed-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit (git 2.34.1) at 2025-09-13 22:41:22 +0000