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2022-09-01wifi: ath11k: Add cold boot calibration support on WCN6750Manikanta Pubbisetty4-4/+31
Add cold boot calibration support on WCN6750. Unlike other chipsets where firmware(FW) is restarted after cold boot calibration is completed, it is recommended not to restart the firmware for WCN6750. For WCN6750, FW sends both CAL_DONE & FW_READY QMI indication to the driver after cold boot calibration is completed. QMI message flow for WCN6750 with cold boot support: FW_INIT_DONE to HOST -> CALIBRATION Mode to FW -> CAL_DONE to Host -> FW_READY to Host -> MODE_ON to FW QMI message flow for other chipsets with cold boot support: FW_INIT_DONE to Host -> CALIBRATION Mode to FW -> FW_READY to Host -> Trigger FW restart -> FW_INIT_DONE to HOST -> MODE_ON to FW QMI message flow for chipsets without cold boot support: FW_INIT_DONE to Host -> MODE_ON to FW Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1 Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220720134909.15626-3-quic_mpubbise@quicinc.com
2022-09-01wifi: ath11k: Fix incorrect QMI message ID mappingsManikanta Pubbisetty2-5/+43
QMI message IDs for some of the QMI messages were incorrectly defined in the original implementation. These have to be corrected to enable cold boot support on WCN6750. These corrections are applicable for all chipsets and will not impact them. Refactor the code accordingly. Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1 Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220720134909.15626-2-quic_mpubbise@quicinc.com
2022-09-01wifi: ath11k: Register shutdown handler for WCN6750Manikanta Pubbisetty2-13/+47
When the system shuts down, SMMU driver will be stopped and will not assist in IOVA translations. SMMU driver expects all of its consumers to shutdown before shutting down itself. WCN6750 being one of the consumer device should not perform any DMA operations after the SMMU has shutdown which will otherwise result in SMMU faults. SMMU driver will call the shutdown() callback of all its consumer devices and the consumers shall stop further DMA activity after the invocation of their respective shutdown() callbacks. Register the shutdown() callback to the platform core for WCN6750. Change will not impact other AHB ath11k devices. Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1 Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220720134710.15523-1-quic_mpubbise@quicinc.com
2022-08-30Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.gitKalle Valo5-43/+83
ath.git patches for v6.1. Only fixes this time.
2022-08-30wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()Tetsuo Handa1-15/+28
syzbot is reporting uninit value at ath9k_htc_rx_msg() [1], for ioctl(USB_RAW_IOCTL_EP_WRITE) can call ath9k_hif_usb_rx_stream() with pkt_len = 0 but ath9k_hif_usb_rx_stream() uses __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC) based on an assumption that pkt_len is valid. As a result, ath9k_hif_usb_rx_stream() allocates skb with uninitialized memory and ath9k_htc_rx_msg() is reading from uninitialized memory. Since bytes accessed by ath9k_htc_rx_msg() is not known until ath9k_htc_rx_msg() is called, it would be difficult to check minimal valid pkt_len at "if (pkt_len > 2 * MAX_RX_BUF_SIZE) {" line in ath9k_hif_usb_rx_stream(). We have two choices. One is to workaround by adding __GFP_ZERO so that ath9k_htc_rx_msg() sees 0 if pkt_len is invalid. The other is to let ath9k_htc_rx_msg() validate pkt_len before accessing. This patch chose the latter. Note that I'm not sure threshold condition is correct, for I can't find details on possible packet length used by this protocol. Link: https://syzkaller.appspot.com/bug?extid=2ca247c2d60c7023de7f [1] Reported-by: syzbot <syzbot+2ca247c2d60c7023de7f@syzkaller.appspotmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/7acfa1be-4b5c-b2ce-de43-95b0593fb3e5@I-love.SAKURA.ne.jp
2022-08-29wifi: mac80211: fix potential deadlock in ieee80211_key_link()Sun Ke1-2/+4
Add the missing unlock before return in the error handling case. Fixes: ccdde7c74ffd ("wifi: mac80211: properly implement MLO key handling") Signed-off-by: Sun Ke <sunke32@huawei.com> Link: https://lore.kernel.org/r/20220827022452.823381-1-sunke32@huawei.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-26Merge tag 'wireless-next-2022-08-26-v2' of ↵David S. Miller75-696/+1851
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes berg says: ==================== Various updates: * rtw88: operation, locking, warning, and code style fixes * rtw89: small updates * cfg80211/mac80211: more EHT/MLO (802.11be, WiFi 7) work * brcmfmac: a couple of fixes * misc cleanups etc. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26r8152: add PID for the Lenovo OneLink+ DockJean-Francois Le Fillatre2-0/+10
The Lenovo OneLink+ Dock contains an RTL8153 controller that behaves as a broken CDC device by default. Add the custom Lenovo PID to the r8152 driver to support it properly. Also, systems compatible with this dock provide a BIOS option to enable MAC address passthrough (as per Lenovo document "ThinkPad Docking Solutions 2017"). Add the custom PID to the MAC passthrough list too. Tested on a ThinkPad 13 1st gen with the expected results: passthrough disabled: Invalid header when reading pass-thru MAC addr passthrough enabled: Using pass-thru MAC addr XX:XX:XX:XX:XX:XX Signed-off-by: Jean-Francois Le Fillatre <jflf_kernel@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26Merge branch '100GbE' of ↵David S. Miller10-27/+804
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2022-08-24 (ice) This series contains updates to ice driver only. Marcin adds support for TC parsing on TTL and ToS fields. Anatolli adds support for devlink port split command to allow configuration of various port configurations. Jake allows for passing and writing an additional NVM write activate field by expanding current cmd_flag. Ani makes PHY debug output more readable. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26wifi: rtw88: fix uninitialized use of primary channel indexPing-Ke Shih1-2/+1
clang reports uninitialized use: >> drivers/net/wireless/realtek/rtw88/main.c:731:2: warning: variable 'primary_channel_idx' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized] default: ^~~~~~~ drivers/net/wireless/realtek/rtw88/main.c:754:39: note: uninitialized use occurs here hal->current_primary_channel_index = primary_channel_idx; ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/realtek/rtw88/main.c:687:24: note: initialize the variable 'primary_channel_idx' to silence this warning u8 primary_channel_idx; ^ = '\0' This situation could not happen, because possible channel bandwidth 20/40/80MHz are enumerated. Fixes: 341dd1f7de4c ("wifi: rtw88: add the update channel flow to support setting by parameters") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20220815062004.22920-1-pkshih@realtek.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-26net: phylink: allow RGMII/RTBI in-band statusQingfang DENG1-0/+5
As per RGMII specification v2.0, section 3.4.1, RGMII/RTBI has an optional in-band status feature where the PHY's link status, speed and duplex mode can be passed to the MAC. Allow RGMII/RTBI to use in-band status. Signed-off-by: Qingfang DENG <dqfext@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26Merge branch 'prestera-matchall'David S. Miller13-78/+291
Maksym Glubokiy says: ==================== net: prestera: matchall features This patch series extracts matchall rules management out of SPAN API implementation and adds 2 features on top of that: - support for egress traffic (mirred egress action) - proper rule priorities management between matchall and flower ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26net: prestera: manage matchall and flower prioritiesMaksym Glubokiy8-0/+163
matchall rules can be added only to chain 0 and their priorities have limitations: - new matchall ingress rule's priority must be higher (lower value) than any existing flower rule; - new matchall egress rule's priority must be lower (higher value) than any existing flower rule. The opposite works for flower rule adding: - new flower ingress rule's priority must be lower (higher value) than any existing matchall rule; - new flower egress rule's priority must be higher (lower value) than any existing matchall rule. This is a hardware limitation and thus must be properly handled in driver by reporting errors to the user when newly added rule has such a priority that cannot be installed into the hardware. To achieve this, the driver must maintain both min/max matchall priorities for every flower block when user adds/deletes a matchall rule, as well as both min/max flower priorities for chain 0 for every adding/deletion of flower rules for chain 0. Cc: Serhiy Boiko <serhiy.boiko@plvision.eu> Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26net: prestera: add support for egress traffic mirroringSerhiy Boiko5-19/+39
This enables adding matchall rules for egress: tc filter add .. egress .. matchall skip_sw \ action mirred egress mirror dev .. Signed-off-by: Serhiy Boiko <serhiy.boiko@plvision.eu> Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26net: prestera: acl: extract matchall logic into a separate fileSerhiy Boiko6-66/+96
This commit adds more clarity to handling of TC_CLSMATCHALL_REPLACE and TC_CLSMATCHALL_DESTROY events by calling newly added *_mall_*() handlers instead of directly calling SPAN API. This also extracts matchall rules management out of SPAN API since SPAN is a hardware module which is used to implement 'matchall egress mirred' action only. Signed-off-by: Taras Chornyi <tchornyi@marvell.com> Signed-off-by: Serhiy Boiko <serhiy.boiko@plvision.eu> Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26net: asix: ax88772: add ethtool pause configurationOleksij Rempel1-0/+20
Add phylink based ethtool pause configuration Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26net: asix: ax88772: migrate to phylinkOleksij Rempel3-11/+116
There are some exotic ax88772 based devices which may require functionality provide by the phylink framework. For example: - US100A20SFP, USB 2.0 auf LWL Converter with SFP Cage - AX88772B USB to 100Base-TX Ethernet (with RMII) demo board, where it is possible to switch between internal PHY and external RMII based connection. So, convert this driver to phylink as soon as possible. Tested with: - AX88772A + internal PHY - AX88772B + external DP83TD510E T1L PHY Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26wifi: mac80211: use full 'unsigned int' typeXin Gao1-4/+4
The full 'unsigned int' is better than 'unsigned'. Signed-off-by: Xin Gao <gaoxin@cdjrlc.com> Link: https://lore.kernel.org/r/20220816181040.9044-1-gaoxin@cdjrlc.com [fix indentation] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-26wifi: mac80211: move from strlcpy with unused retval to strscpyWolfram Sang1-1/+1
Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-26wifi: mac80211: read ethtool's sta_stats from sinfoRyder Lee1-5/+5
Driver may update sinfo directly through .sta_statistics, so this patch makes sure that ethool gets the correct statistics. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Link: https://lore.kernel.org/r/f9edff14dd7f5205acf1c21bae8e9d8f9802dd88.1661466499.git.ryder.lee@mediatek.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-26wifi: mac80211: correct SMPS mode in HE 6 GHz capabilityJohannes Berg4-4/+7
If we add 6 GHz capability in MLO, we cannot use the SMPS mode from the deflink. Pass it separately instead since on a second link we don't even have a link data struct yet. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-26dt-bindings: net: Add missing (unevaluated|additional)Properties on child nodesRob Herring6-24/+19
In order to ensure only documented properties are present, node schemas must have unevaluatedProperties or additionalProperties set to false (typically). Add missing properties/$refs as exposed by this addition. Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220825192609.1538463-1-robh@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski445-2813/+5229
drivers/net/ethernet/mellanox/mlx5/core/en_fs.c 21234e3a84c7 ("net/mlx5e: Fix use after free in mlx5e_fs_init()") c7eafc5ed068 ("net/mlx5e: Convert ethtool_steering member of flow_steering struct to pointer") https://lore.kernel.org/all/20220825104410.67d4709c@canb.auug.org.au/ https://lore.kernel.org/all/20220823055533.334471-1-saeed@kernel.org/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-26netdev: Use try_cmpxchg in napi_if_scheduled_mark_missedUros Bizjak1-2/+2
Use try_cmpxchg instead of cmpxchg (*ptr, old, new) == old in napi_if_scheduled_mark_missed. x86 CMPXCHG instruction returns success in ZF flag, so this change saves a compare after cmpxchg (and related move instruction in front of cmpxchg). Also, try_cmpxchg implicitly assigns old *ptr value to "old" when cmpxchg fails, enabling further code simplifications. Cc: Eric Dumazet <edumazet@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Link: https://lore.kernel.org/r/20220822143243.2798-1-ubizjak@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-26Merge tag 'net-6.0-rc3' of ↵Linus Torvalds102-358/+865
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from ipsec and netfilter (with one broken Fixes tag). Current release - new code bugs: - dsa: don't dereference NULL extack in dsa_slave_changeupper() - dpaa: fix <1G ethernet on LS1046ARDB - neigh: don't call kfree_skb() under spin_lock_irqsave() Previous releases - regressions: - r8152: fix the RX FIFO settings when suspending - dsa: microchip: keep compatibility with device tree blobs with no phy-mode - Revert "net: macsec: update SCI upon MAC address change." - Revert "xfrm: update SA curlft.use_time", comply with RFC 2367 Previous releases - always broken: - netfilter: conntrack: work around exceeded TCP receive window - ipsec: fix a null pointer dereference of dst->dev on a metadata dst in xfrm_lookup_with_ifid - moxa: get rid of asymmetry in DMA mapping/unmapping - dsa: microchip: make learning configurable and keep it off while standalone - ice: xsk: prohibit usage of non-balanced queue id - rxrpc: fix locking in rxrpc's sendmsg Misc: - another chunk of sysctl data race silencing" * tag 'net-6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (87 commits) net: lantiq_xrx200: restore buffer if memory allocation failed net: lantiq_xrx200: fix lock under memory pressure net: lantiq_xrx200: confirm skb is allocated before using net: stmmac: work around sporadic tx issue on link-up ionic: VF initial random MAC address if no assigned mac ionic: fix up issues with handling EAGAIN on FW cmds ionic: clear broken state on generation change rxrpc: Fix locking in rxrpc's sendmsg net: ethernet: mtk_eth_soc: fix hw hash reporting for MTK_NETSYS_V2 MAINTAINERS: rectify file entry in BONDING DRIVER i40e: Fix incorrect address type for IPv6 flow rules ixgbe: stop resetting SYSTIME in ixgbe_ptp_start_cyclecounter net: Fix a data-race around sysctl_somaxconn. net: Fix a data-race around netdev_unregister_timeout_secs. net: Fix a data-race around gro_normal_batch. net: Fix data-races around sysctl_devconf_inherit_init_net. net: Fix data-races around sysctl_fb_tunnels_only_for_init_net. net: Fix a data-race around netdev_budget_usecs. net: Fix data-races around sysctl_max_skb_frags. net: Fix a data-race around netdev_budget. ...
2022-08-25Merge branch 'mlxsw-remove-some-unused-code'Jakub Kicinski3-138/+0
Petr Machata says: ==================== mlxsw: Remove some unused code This patchset removes code that is not used anymore after the following two commits removed all users: - commit b0d80c013b04 ("mlxsw: Remove Mellanox SwitchX-2 ASIC support") - commit 9b43fbb8ce24 ("mlxsw: Remove Mellanox SwitchIB ASIC support") ==================== Link: https://lore.kernel.org/r/cover.1661350629.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25mlxsw: Remove unused mlxsw_core_port_type_get()Jiri Pirko2-14/+0
Function mlxsw_core_port_type_get() is no longer used. So remove it. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25mlxsw: Remove unused port_type_set devlink opJiri Pirko2-18/+0
port_type_set devlink op is no longer used by any mlxsw driver, so remove it. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25mlxsw: Remove unused IB stuffJiri Pirko3-106/+0
There are some IB leftovers that are no longer used in the code. So remove them. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25Merge branch 'net-devlink-sync-flash-and-dev-info-commands'Jakub Kicinski3-26/+147
Jiri Pirko says: ==================== net: devlink: sync flash and dev info commands Purpose of this patchset is to introduce consistency between two devlink commands: devlink dev info Shows versions of running default flash target and components. devlink dev flash Flashes default flash target or component name (if specified on cmdline). Currently it is up to the driver what versions to expose and what flash update component names to accept. This is inconsistent. Thankfully, only netdevsim currently using components so it is still time to sanitize this. This patchset makes sure, that devlink.c calls into driver for component flash update only in case the driver exposes the same version name. Example: $ devlink dev info netdevsim/netdevsim10: driver netdevsim versions: running: fw.mgmt 10.20.30 stored: fw.mgmt 10.20.30 $ devlink dev flash netdevsim/netdevsim10 file somefile.bin [fw.mgmt] Preparing to flash [fw.mgmt] Flashing 100% [fw.mgmt] Flash select [fw.mgmt] Flashing done $ devlink dev flash netdevsim/netdevsim10 file somefile.bin component fw.mgmt [fw.mgmt] Preparing to flash [fw.mgmt] Flashing 100% [fw.mgmt] Flash select [fw.mgmt] Flashing done $ devlink dev flash netdevsim/netdevsim10 file somefile.bin component dummy Error: selected component is not supported by this device. ==================== Link: https://lore.kernel.org/r/20220824122011.1204330-1-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25net: devlink: limit flash component name to match version returned by info_get()Jiri Pirko3-21/+90
Limit the acceptance of component name passed to cmd_flash_update() to match one of the versions returned by info_get(), marked by version type. This makes things clearer and enforces 1:1 mapping between exposed version and accepted flash component. Check VERSION_TYPE_COMPONENT version type during cmd_flash_update() execution by calling info_get() with different "req" context. That causes info_get() to lookup the component name instead of filling-up the netlink message. Remove "UPDATE_COMPONENT" flag which becomes used. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25netdevsim: add version fw.mgmt info info_get() and mark as a componentJiri Pirko1-1/+11
Fix the only component user which is netdevsim. It uses component named "fw.mgmt" in selftests. So add this version to info_get() output with version type component. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25net: devlink: extend info_get() version put to indicate a flash componentJiri Pirko2-4/+46
Whenever the driver is called by his info_get() op, it may put multiple version names and values to the netlink message. Extend by additional helper devlink_info_version_running/stored_put_ext() that allows to specify a version type that indicates when particular version name represents a flash component. This is going to be used in follow-up patch calling info_get() during flash update command checking if version with this the version type exists. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25selftests/net: fix reinitialization of TEST_PROGS in net self tests.Adel Abouchaev1-1/+1
Assinging will drop all previous tests. Fixes: b690842d12fd ("selftests/net: test l2 tunnel TOS/TTL inheriting") Signed-off-by: Adel Abouchaev <adel.abushaev@gmail.com> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20220824184351.3759862-1-adel.abushaev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25Merge branch 'net-lantiq_xrx200-fix-errors-under-memory-pressure'Jakub Kicinski1-1/+8
Aleksander Jan Bajkowski says: ==================== net: lantiq_xrx200: fix errors under memory pressure This series fixes issues that can occur in the driver under memory pressure. Situations when the system cannot allocate memory are rare, so the mentioned bugs have been fixed recently. The patches have been tested on a BT Home router with the Lantiq xRX200 chipset. Changelog: v3: - removed netdev_err() log from the first patch v2: - the second patch has been changed, so that under memory pressure situation the driver will not receive packets indefinitely regardless of the NAPI budget, - the third patch has been added. ==================== Link: https://lore.kernel.org/r/20220824215408.4695-1-olek2@wp.pl Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25net: lantiq_xrx200: restore buffer if memory allocation failedAleksander Jan Bajkowski1-0/+1
In a situation where memory allocation fails, an invalid buffer address is stored. When this descriptor is used again, the system panics in the build_skb() function when accessing memory. Fixes: 7ea6cd16f159 ("lantiq: net: fix duplicated skb in rx descriptor ring") Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25net: lantiq_xrx200: fix lock under memory pressureAleksander Jan Bajkowski1-1/+1
When the xrx200_hw_receive() function returns -ENOMEM, the NAPI poll function immediately returns an error. This is incorrect for two reasons: * the function terminates without enabling interrupts or scheduling NAPI, * the error code (-ENOMEM) is returned instead of the number of received packets. After the first memory allocation failure occurs, packet reception is locked due to disabled interrupts from DMA.. Fixes: fe1a56420cf2 ("net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver") Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25net: lantiq_xrx200: confirm skb is allocated before usingAleksander Jan Bajkowski1-0/+6
xrx200_hw_receive() assumes build_skb() always works and goes straight to skb_reserve(). However, build_skb() can fail under memory pressure. Add a check in case build_skb() failed to allocate and return NULL. Fixes: e015593573b3 ("net: lantiq_xrx200: convert to build_skb") Reported-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25net: stmmac: work around sporadic tx issue on link-upHeiner Kallweit2-6/+11
This is a follow-up to the discussion in [0]. It seems to me that at least the IP version used on Amlogic SoC's sometimes has a problem if register MAC_CTRL_REG is written whilst the chip is still processing a previous write. But that's just a guess. Adding a delay between two writes to this register helps, but we can also simply omit the offending second write. This patch uses the second approach and is based on a suggestion from Qi Duan. Benefit of this approach is that we can save few register writes, also on not affected chip versions. [0] https://www.spinics.net/lists/netdev/msg831526.html Fixes: bfab27a146ed ("stmmac: add the experimental PCI support") Suggested-by: Qi Duan <qi.duan@amlogic.com> Suggested-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/e99857ce-bd90-5093-ca8c-8cd480b5a0a2@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25Merge branch '10GbE' of ↵Jakub Kicinski2-14/+47
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2022-08-24 (ixgbe, i40e) This series contains updates to ixgbe and i40e drivers. Jake stops incorrect resetting of SYSTIME registers when starting cyclecounter for ixgbe. Sylwester corrects a check on source IP address when validating destination for i40e. * '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: i40e: Fix incorrect address type for IPv6 flow rules ixgbe: stop resetting SYSTIME in ixgbe_ptp_start_cyclecounter ==================== Link: https://lore.kernel.org/r/20220824193748.874343-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25Merge branch 'ionic-bug-fixes'Jakub Kicinski2-6/+93
Shannon Nelson says: ==================== ionic: bug fixes These are a couple of maintenance bug fixes for the Pensando ionic networking driver. Mohamed takes care of a "plays well with others" issue where the VF spec is a bit vague on VF mac addresses, but certain customers have come to expect behavior based on other vendor drivers. Shannon addresses a couple of corner cases seen in internal stress testing. ==================== Link: https://lore.kernel.org/r/20220824165051.6185-1-snelson@pensando.io Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25ionic: VF initial random MAC address if no assigned macR Mohamed Shah1-5/+87
Assign a random mac address to the VF interface station address if it boots with a zero mac address in order to match similar behavior seen in other VF drivers. Handle the errors where the older firmware does not allow the VF to set its own station address. Newer firmware will allow the VF to set the station mac address if it hasn't already been set administratively through the PF. Setting it will also be allowed if the VF has trust. Fixes: fbb39807e9ae ("ionic: support sr-iov operations") Signed-off-by: R Mohamed Shah <mohamed@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25ionic: fix up issues with handling EAGAIN on FW cmdsShannon Nelson1-1/+3
In looping on FW update tests we occasionally see the FW_ACTIVATE_STATUS command fail while it is in its EAGAIN loop waiting for the FW activate step to finsh inside the FW. The firmware is complaining that the done bit is set when a new dev_cmd is going to be processed. Doing a clean on the cmd registers and doorbell before exiting the wait-for-done and cleaning the done bit before the sleep prevents this from occurring. Fixes: fbfb8031533c ("ionic: Add hardware init and device commands") Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25ionic: clear broken state on generation changeShannon Nelson1-0/+3
There is a case found in heavy testing where a link flap happens just before a firmware Recovery event and the driver gets stuck in the BROKEN state. This comes from the driver getting interrupted by a FW generation change when coming back up from the link flap, and the call to ionic_start_queues() in ionic_link_status_check() fails. This can be addressed by having the fw_up code clear the BROKEN bit if seen, rather than waiting for a user to manually force the interface down and then back up. Fixes: 9e8eaf8427b6 ("ionic: stop watchdog when in broken state") Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25rxrpc: Fix locking in rxrpc's sendmsgDavid Howells2-39/+57
Fix three bugs in the rxrpc's sendmsg implementation: (1) rxrpc_new_client_call() should release the socket lock when returning an error from rxrpc_get_call_slot(). (2) rxrpc_wait_for_tx_window_intr() will return without the call mutex held in the event that we're interrupted by a signal whilst waiting for tx space on the socket or relocking the call mutex afterwards. Fix this by: (a) moving the unlock/lock of the call mutex up to rxrpc_send_data() such that the lock is not held around all of rxrpc_wait_for_tx_window*() and (b) indicating to higher callers whether we're return with the lock dropped. Note that this means recvmsg() will not block on this call whilst we're waiting. (3) After dropping and regaining the call mutex, rxrpc_send_data() needs to go and recheck the state of the tx_pending buffer and the tx_total_len check in case we raced with another sendmsg() on the same call. Thinking on this some more, it might make sense to have different locks for sendmsg() and recvmsg(). There's probably no need to make recvmsg() wait for sendmsg(). It does mean that recvmsg() can return MSG_EOR indicating that a call is dead before a sendmsg() to that call returns - but that can currently happen anyway. Without fix (2), something like the following can be induced: WARNING: bad unlock balance detected! 5.16.0-rc6-syzkaller #0 Not tainted ------------------------------------- syz-executor011/3597 is trying to release lock (&call->user_mutex) at: [<ffffffff885163a3>] rxrpc_do_sendmsg+0xc13/0x1350 net/rxrpc/sendmsg.c:748 but there are no more locks to release! other info that might help us debug this: no locks held by syz-executor011/3597. ... Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_unlock_imbalance_bug include/trace/events/lock.h:58 [inline] __lock_release kernel/locking/lockdep.c:5306 [inline] lock_release.cold+0x49/0x4e kernel/locking/lockdep.c:5657 __mutex_unlock_slowpath+0x99/0x5e0 kernel/locking/mutex.c:900 rxrpc_do_sendmsg+0xc13/0x1350 net/rxrpc/sendmsg.c:748 rxrpc_sendmsg+0x420/0x630 net/rxrpc/af_rxrpc.c:561 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae [Thanks to Hawkins Jiawei and Khalid Masum for their attempts to fix this] Fixes: bc5e3a546d55 ("rxrpc: Use MSG_WAITALL to tell sendmsg() to temporarily ignore signals") Reported-by: syzbot+7f0483225d0c94cb3441@syzkaller.appspotmail.com Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Marc Dionne <marc.dionne@auristor.com> Tested-by: syzbot+7f0483225d0c94cb3441@syzkaller.appspotmail.com cc: Hawkins Jiawei <yin31149@gmail.com> cc: Khalid Masum <khalid.masum.92@gmail.com> cc: Dan Carpenter <dan.carpenter@oracle.com> cc: linux-afs@lists.infradead.org Link: https://lore.kernel.org/r/166135894583.600315.7170979436768124075.stgit@warthog.procyon.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-25Merge tag 'cgroup-for-6.0-rc2-fixes-2' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull another cgroup fix from Tejun Heo: "Commit 4f7e7236435c ("cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock") required the cgroup core to grab cpus_read_lock() before invoking ->attach(). Unfortunately, it missed adding cpus_read_lock() in cgroup_attach_task_all(). Fix it" * tag 'cgroup-for-6.0-rc2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()
2022-08-25cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()Tetsuo Handa1-0/+2
syzbot is hitting percpu_rwsem_assert_held(&cpu_hotplug_lock) warning at cpuset_attach() [1], for commit 4f7e7236435ca0ab ("cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock") missed that cpuset_attach() is also called from cgroup_attach_task_all(). Add cpus_read_lock() like what cgroup_procs_write_start() does. Link: https://syzkaller.appspot.com/bug?extid=29d3a3b4d86c8136ad9e [1] Reported-by: syzbot <syzbot+29d3a3b4d86c8136ad9e@syzkaller.appspotmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Fixes: 4f7e7236435ca0ab ("cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock") Signed-off-by: Tejun Heo <tj@kernel.org>
2022-08-25net: sched: delete duplicate cleanup of backlog and qlenZhengchao Shao21-40/+0
qdisc_reset() is clearing qdisc->q.qlen and qdisc->qstats.backlog _after_ calling qdisc->ops->reset. There is no need to clear them again in the specific reset function. Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Link: https://lore.kernel.org/r/20220824005231.345727-1-shaozhengchao@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-08-25net: ethernet: mtk_eth_soc: fix hw hash reporting for MTK_NETSYS_V2Lorenzo Bianconi2-10/+17
Properly report hw rx hash for mt7986 chipset accroding to the new dma descriptor layout. Fixes: 197c9e9b17b11 ("net: ethernet: mtk_eth_soc: introduce support for mt7986 chipset") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/091394ea4e705fbb35f828011d98d0ba33808f69.1661257293.git.lorenzo@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-08-25wifi: cfg80211: Add link_id to cfg80211_ch_switch_started_notify()Veerendranath Jakkam5-11/+26
Add link_id parameter to cfg80211_ch_switch_started_notify() to allow driver to indicate on which link channel switch started on MLD. Send the data to userspace so it knows as well. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Link: https://lore.kernel.org/r/20220722131143.3438042-1-quic_vjakkam@quicinc.com Link: https://lore.kernel.org/r/20220722131143.3438042-2-quic_vjakkam@quicinc.com [squash two patches] Signed-off-by: Johannes Berg <johannes.berg@intel.com>