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2025-03-25net: phy: sfp: Add support for SMBus module accessMaxime Chevallier
The SFP module's eeprom and internals are accessible through an i2c bus. It is possible that the SFP might be connected to an SMBus-only controller, such as the one found in some PHY devices in the VSC85xx family. Introduce a set of sfp read/write ops that are going to be used if the i2c bus is only capable of doing smbus byte accesses. As Single-byte SMBus transaction go against SFF-8472 and breaks the atomicity for diagnostics data access, hwmon is disabled in the case of SMBus access. Moreover, as this may cause other instabilities, print a warning at probe time to indicate that the setup may be unreliable because of the hardware design. As hwmon may be disabled for both broken EEPROM and smbus, the warnings are udpated accordingly. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250322075745.120831-2-maxime.chevallier@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25Merge tag 'ipsec-next-2025-03-24' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2025-03-24 1) Prevent setting high order sequence number bits input in non-ESN mode. From Leon Romanovsky. 2) Support PMTU handling in tunnel mode for packet offload. From Leon Romanovsky. 3) Make xfrm_state_lookup_byaddr lockless. From Florian Westphal. 4) Remove unnecessary NULL check in xfrm_lookup_with_ifid(). From Dan Carpenter. * tag 'ipsec-next-2025-03-24' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next: xfrm: Remove unnecessary NULL check in xfrm_lookup_with_ifid() xfrm: state: make xfrm_state_lookup_byaddr lockless xfrm: check for PMTU in tunnel mode for packet offload xfrm: provide common xdo_dev_offload_ok callback implementation xfrm: rely on XFRM offload xfrm: simplify SA initialization routine xfrm: delay initialization of offload path till its actually requested xfrm: prevent high SEQ input in non-ESN mode ==================== Link: https://patch.msgid.link/20250324061855.4116819-1-steffen.klassert@secunet.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: au1000_eth: Mark au1000_ReleaseDB() staticJohan Korsnes
This fixes the following build warning: ``` drivers/net/ethernet/amd/au1000_eth.c:574:6: warning: no previous prototype for 'au1000_ReleaseDB' [-Wmissing-prototypes] 574 | void au1000_ReleaseDB(struct au1000_private *aup, struct db_dest *pDB) | ^~~~~~~~~~~~~~~~ ``` Signed-off-by: Johan Korsnes <johan.korsnes@gmail.com> Cc: Andrew Lunn <andrew+netdev@lunn.ch> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://patch.msgid.link/20250323190450.111241-1-johan.korsnes@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: fix NULL pointer dereference in l3mdev_l3_rcvWang Liang
When delete l3s ipvlan: ip link del link eth0 ipvlan1 type ipvlan mode l3s This may cause a null pointer dereference: Call trace: ip_rcv_finish+0x48/0xd0 ip_rcv+0x5c/0x100 __netif_receive_skb_one_core+0x64/0xb0 __netif_receive_skb+0x20/0x80 process_backlog+0xb4/0x204 napi_poll+0xe8/0x294 net_rx_action+0xd8/0x22c __do_softirq+0x12c/0x354 This is because l3mdev_l3_rcv() visit dev->l3mdev_ops after ipvlan_l3s_unregister() assign the dev->l3mdev_ops to NULL. The process like this: (CPU1) | (CPU2) l3mdev_l3_rcv() | check dev->priv_flags: | master = skb->dev; | | | ipvlan_l3s_unregister() | set dev->priv_flags | dev->l3mdev_ops = NULL; | visit master->l3mdev_ops | To avoid this by do not set dev->l3mdev_ops when unregister l3s ipvlan. Suggested-by: David Ahern <dsahern@kernel.org> Fixes: c675e06a98a4 ("ipvlan: decouple l3s mode dependencies from other modes") Signed-off-by: Wang Liang <wangliang74@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250321090353.1170545-1-wangliang74@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25ibmvnic: Use kernel helpers for hex dumpsNick Child
Previously, when the driver was printing hex dumps, the buffer was cast to an 8 byte long and printed using string formatters. If the buffer size was not a multiple of 8 then a read buffer overflow was possible. Therefore, create a new ibmvnic function that loops over a buffer and calls hex_dump_to_buffer instead. This patch address KASAN reports like the one below: ibmvnic 30000003 env3: Login Buffer: ibmvnic 30000003 env3: 01000000af000000 <...> ibmvnic 30000003 env3: 2e6d62692e736261 ibmvnic 30000003 env3: 65050003006d6f63 ================================================================== BUG: KASAN: slab-out-of-bounds in ibmvnic_login+0xacc/0xffc [ibmvnic] Read of size 8 at addr c0000001331a9aa8 by task ip/17681 <...> Allocated by task 17681: <...> ibmvnic_login+0x2f0/0xffc [ibmvnic] ibmvnic_open+0x148/0x308 [ibmvnic] __dev_open+0x1ac/0x304 <...> The buggy address is located 168 bytes inside of allocated 175-byte region [c0000001331a9a00, c0000001331a9aaf) <...> ================================================================= ibmvnic 30000003 env3: 000000000033766e Fixes: 032c5e82847a ("Driver for IBM System i/p VNIC protocol") Signed-off-by: Nick Child <nnac123@linux.ibm.com> Reviewed-by: Dave Marquardt <davemarq@linux.ibm.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250320212951.11142-1-nnac123@linux.ibm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25Merge tag 'wireless-next-2025-03-20' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== More features for 6.15, major changes: * cfg80211/mac80211: fix and enable link reconfiguration * rtw88: support RTL8814AE/RTL8814AU * mt7996: preparations for MLO * ath12k: continued work on MLO * iwlwifi: add new iwlmld sub-driver/op-mode for some current and future devices * wfx: wowlan support * tag 'wireless-next-2025-03-20' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (311 commits) wifi: mt76: mt7996: fix locking in mt7996_mac_sta_rc_work() wifi: mt76: mt76x2u: add TP-Link TL-WDN6200 ID to device table wifi: mt76: mt792x: re-register CHANCTX_STA_CSA only for the mt7921 series wifi: mt76: mt7996: Update mt7996_tx to MLO support wifi: mt76: mt7996: rework mt7996_ampdu_action to support MLO wifi: mt76: mt7996: rework set/get_tsf callabcks to support MLO wifi: mt76: mt7996: set vif default link_id adding/removing vif links wifi: mt76: mt7996: rework mt7996_mcu_beacon_inband_discov to support MLO wifi: mt76: mt7996: rework mt7996_mcu_add_obss_spr to support MLO wifi: mt76: mt7996: rework mt7996_net_fill_forward_path to support MLO wifi: mt76: mt7996: rework mt7996_update_mu_group to support MLO wifi: mt76: mt7996: rework mt7996_mac_sta_poll to support MLO wifi: mt76: mt7996: rework mt7996_mac_sta_rc_work to support MLO wifi: mt76: mt7996: remove mt7996_mac_enable_rtscts() wifi: mt76: mt7996: rework mt7996_sta_hw_queue_read to support MLO wifi: mt76: mt7996: rework mt7996_set_hw_key to support MLO wifi: mt76: mt7996: Add mt7996_sta_link to mt7996_mcu_add_bss_info signature wifi: mt76: mt7996: rework mt7996_sta_set_4addr and mt7996_sta_set_decap_offload to support MLO wifi: mt76: mt7996: rework mt7996_rx_get_wcid to support MLO wifi: mt76: mt7996: Rely on wcid_to_sta in mt7996_mac_add_txs_skb() ... ==================== Link: https://patch.msgid.link/20250320131106.33266-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: stmmac: dwmac-rk: Add initial support for RK3528 integrated PHYJonas Karlman
Rockchip RK3528 (and RV1106) has a different integrated PHY compared to the integrated PHY on RK3228/RK3328. Current powerup/down operation is not compatible with the integrated PHY found in these newer SoCs. Add operations to powerup/down the integrated PHY found in RK3528. Use helpers that can be used by other GMAC variants in the future. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250319214415.3086027-6-jonas@kwiboo.se Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: stmmac: dwmac-rk: Add integrated_phy_powerdown operationJonas Karlman
Rockchip RK3528 (and RV1106) has a different integrated PHY compared to the integrated PHY on RK3228/RK3328. Current powerup/down operation is not compatible with the integrated PHY found in these newer SoCs. Add a new integrated_phy_powerdown operation and change the call chain for integrated_phy_powerup to prepare support for the integrated PHY found in these newer SoCs. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250319214415.3086027-5-jonas@kwiboo.se Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: stmmac: dwmac-rk: Move integrated_phy_powerup/down functionsJonas Karlman
Rockchip RK3528 (and RV1106) has a different integrated PHY compared to the integrated PHY on RK3228/RK3328. Current powerup/down operation is not compatible with the integrated PHY found in these SoCs. Move the rk_gmac_integrated_phy_powerup/down functions to top of the file to prepare for them to be called directly by a GMAC variant specific powerup/down operation. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250319214415.3086027-4-jonas@kwiboo.se Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: stmmac: dwmac-rk: Add GMAC support for RK3528David Wu
Rockchip RK3528 has two Ethernet controllers based on Synopsys DWC Ethernet QoS IP. Add initial support for the RK3528 GMAC variant. Signed-off-by: David Wu <david.wu@rock-chips.com> Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Link: https://patch.msgid.link/20250319214415.3086027-3-jonas@kwiboo.se Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25bonding: check xdp prog when set bond modeWang Liang
Following operations can trigger a warning[1]: ip netns add ns1 ip netns exec ns1 ip link add bond0 type bond mode balance-rr ip netns exec ns1 ip link set dev bond0 xdp obj af_xdp_kern.o sec xdp ip netns exec ns1 ip link set bond0 type bond mode broadcast ip netns del ns1 When delete the namespace, dev_xdp_uninstall() is called to remove xdp program on bond dev, and bond_xdp_set() will check the bond mode. If bond mode is changed after attaching xdp program, the warning may occur. Some bond modes (broadcast, etc.) do not support native xdp. Set bond mode with xdp program attached is not good. Add check for xdp program when set bond mode. [1] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 11 at net/core/dev.c:9912 unregister_netdevice_many_notify+0x8d9/0x930 Modules linked in: CPU: 0 UID: 0 PID: 11 Comm: kworker/u4:0 Not tainted 6.14.0-rc4 #107 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014 Workqueue: netns cleanup_net RIP: 0010:unregister_netdevice_many_notify+0x8d9/0x930 Code: 00 00 48 c7 c6 6f e3 a2 82 48 c7 c7 d0 b3 96 82 e8 9c 10 3e ... RSP: 0018:ffffc90000063d80 EFLAGS: 00000282 RAX: 00000000ffffffa1 RBX: ffff888004959000 RCX: 00000000ffffdfff RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffc90000063b48 RBP: ffffc90000063e28 R08: ffffffff82d39b28 R09: 0000000000009ffb R10: 0000000000000175 R11: ffffffff82d09b40 R12: ffff8880049598e8 R13: 0000000000000001 R14: dead000000000100 R15: ffffc90000045000 FS: 0000000000000000(0000) GS:ffff888007a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000d406b60 CR3: 000000000483e000 CR4: 00000000000006f0 Call Trace: <TASK> ? __warn+0x83/0x130 ? unregister_netdevice_many_notify+0x8d9/0x930 ? report_bug+0x18e/0x1a0 ? handle_bug+0x54/0x90 ? exc_invalid_op+0x18/0x70 ? asm_exc_invalid_op+0x1a/0x20 ? unregister_netdevice_many_notify+0x8d9/0x930 ? bond_net_exit_batch_rtnl+0x5c/0x90 cleanup_net+0x237/0x3d0 process_one_work+0x163/0x390 worker_thread+0x293/0x3b0 ? __pfx_worker_thread+0x10/0x10 kthread+0xec/0x1e0 ? __pfx_kthread+0x10/0x10 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2f/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> ---[ end trace 0000000000000000 ]--- Fixes: 9e2ee5c7e7c3 ("net, bonding: Add XDP support to the bonding driver") Signed-off-by: Wang Liang <wangliang74@huawei.com> Acked-by: Jussi Maki <joamaki@gmail.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://patch.msgid.link/20250321044852.1086551-1-wangliang74@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: stmmac: block PHY RXC clock-stopRussell King (Oracle)
The DesignWare core requires the receive clock to be running during certain operations. Ensure that we block PHY RXC clock-stop during these operations. This is a best-efforts change - not everywhere can be covered by this because of net's core locking, which means we can't access the MDIO bus to configure the PHY to disable RXC clock-stop in certain areas. These are marked with FIXME comments. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://patch.msgid.link/E1tvO6p-008Vjz-Qy@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: phylink: add functions to block/unblock rx clock stopRussell King (Oracle)
Some MACs require the PHY receive clock to be running to complete setup actions. This may fail if the PHY has negotiated EEE, the MAC supports receive clock stop, and the link has entered LPI state. Provide a pair of APIs that MAC drivers can use to temporarily block the PHY disabling the receive clock. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://patch.msgid.link/E1tvO6k-008Vjt-MZ@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: stmmac: socfpga: remove phy_resume() callRussell King (Oracle)
As the previous commit addressed DWGMAC resuming with a PHY in suspended state, there is now no need for socfpga to work around this. Remove this code. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://patch.msgid.link/E1tvO6f-008Vjn-J1@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: stmmac: address non-LPI resume failures properlyRussell King (Oracle)
The Synopsys Designware GMAC core databook requires all clocks to be active in order to complete software reset, which we perform during resume. However, IEEE 802.3 allows a PHY to stop its clocks when placed in low-power mode, which happens when the system is suspended and WoL is not enabled. As an attempt to work around this, commit 36d18b5664ef ("net: stmmac: start phylink instance before stmmac_hw_setup()") started phylink early, but this has the side effect that the mac_link_up() method may be called before or during the initialisation of GMAC hardware. We also have the socfpga glue driver directly calling phy_resume() also as an attempt to work around this. In a previous commit, phylink_prepare_resume() has been introduced to give MAC drivers a way to ensure that the PHY is resumed prior to their initialisation of their MAC hardware. This commit adds the call, and moves the phylink_resume() call back to where it should be before the aforementioned commit. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://patch.msgid.link/E1tvO6a-008Vjh-FG@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: phylink: add phylink_prepare_resume()Russell King (Oracle)
When the system is suspended, the PHY may be placed in low-power mode by setting the BMCR 0.11 Power down bit. IEEE 802.3 states that the behaviour of the PHY in this state is implementation specific, and the PHY is not required to meet the RX_CLK and TX_CLK requirements. Essentially, this means that a PHY may stop the clocks that it is generating while in power down state. However, MACs exist which require the clocks from the PHY to be running in order to properly resume. phylink_prepare_resume() provides them with a way to clear the Power down bit early. Note, however, that IEEE 802.3 gives PHYs up to 500ms grace before the transmit and receive clocks meet the requirements after clearing the power down bit. Add a resume preparation function, which will ensure that the receive clock from the PHY is appropriately configured while resuming. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://patch.msgid.link/E1tvO6V-008Vjb-AP@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25sfc: support X4 devlink flashEdward Cree
Unlike X2 and EF100, we do not attempt to parse the firmware file to find an image within it; we simply hand the entire file to the MC, which is responsible for understanding any container formats we might use and validating that the firmware file is applicable to this NIC. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://patch.msgid.link/9a72a74002a7819c780b0a18ce9294c9d4e1db12.1742493017.git.ecree.xilinx@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25sfc: update MCDI protocol headersEdward Cree
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://patch.msgid.link/bcb7597460a5a99d1dca4ef282f4aa2dd46ae545.1742493017.git.ecree.xilinx@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25sfc: rip out MDIO supportEdward Cree
Unlike Siena, no EF10 board ever had an external PHY, and consequently MDIO handling isn't even built into the firmware. Since Siena has been split out into its own driver, the MDIO code can be deleted from the sfc driver. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://patch.msgid.link/aa689d192ddaef7abe82709316c2be648a7bd66e.1742493017.git.ecree.xilinx@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25vmxnet3: unregister xdp rxq info in the reset pathSankararaman Jayaraman
vmxnet3 does not unregister xdp rxq info in the vmxnet3_reset_work() code path as vmxnet3_rq_destroy() is not invoked in this code path. So, we get below message with a backtrace. Missing unregister, handled but fix driver WARNING: CPU:48 PID: 500 at net/core/xdp.c:182 __xdp_rxq_info_reg+0x93/0xf0 This patch fixes the problem by moving the unregister code of XDP from vmxnet3_rq_destroy() to vmxnet3_rq_cleanup(). Fixes: 54f00cce1178 ("vmxnet3: Add XDP support.") Signed-off-by: Sankararaman Jayaraman <sankararaman.jayaraman@broadcom.com> Signed-off-by: Ronak Doshi <ronak.doshi@broadcom.com> Link: https://patch.msgid.link/20250320045522.57892-1-sankararaman.jayaraman@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net/mlx5e: TC, Don't offload CT commit if it's the last actionJianbo Liu
For CT action with commit argument, it's usually followed by the forward action, either to the output netdev or next chain. The default behavior for software is to drop by setting action attribute to TC_ACT_SHOT instead of TC_ACT_PIPE if it's the last action. But driver can't handle it, so block the offload for such case. Signed-off-by: Jianbo Liu <jianbol@nvidia.com> Reviewed-by: Roi Dayan <roid@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1742392983-153050-6-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net/mlx5e: CT: Filter legacy rules that are unrelated to nicPaul Blakey
In nic mode CT setup where we do hairpin between the two nics, both nics register to the same flow table (per zone), and try to offload all rules on it. Instead, filter the rules that originated from the relevant nic (so only one side is offloaded for each nic). Signed-off-by: Paul Blakey <paulb@nvidia.com> Reviewed-by: Jianbo Liu <jianbol@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1742392983-153050-5-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net/mlx5: Update pfnum retrieval for devlink port attributesShay Drory
Align mlx5 driver usage of 'pfnum' with the documentation clarification introduced in commit bb70b0d48d8e ("devlink: Improve the port attributes description"). Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Mark Bloch <mbloch@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1742392983-153050-4-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net/mlx5: fw reset, check bridge accessibility at earlier stageAmir Tzin
Currently, mlx5_is_reset_now_capable() checks whether the pci bridge is accessible only on bridge hot plug capability check. If the pci bridge is not accessible, reset now will fail regardless of bridge hotplug capability. Move this check to function mlx5_is_reset_now_capable() which, in such case, aborts the reset and does so in the request phase instead of the reset now phase. Signed-off-by: Aya Levin <ayal@nvidia.com> Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Signed-off-by: Amir Tzin <amirtz@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1742392983-153050-3-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net/mlx5: Lag, use port selection tables when availableMark Bloch
As queue affinity is being deprecated and will no longer be supported in the future, Always check for the presence of the port selection namespace. When available, leverage it to distribute traffic across the physical ports via steering, ensuring compatibility with future NICs. Signed-off-by: Mark Bloch <mbloch@nvidia.com> Reviewed-by: Maor Gottlieb <maorg@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/1742392983-153050-2-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net/mlx5e: TX, Utilize WQ fragments edge for multi-packet WQEsTariq Toukan
For simplicity reasons, the driver avoids crossing work queue fragment boundaries within the same TX WQE (Work-Queue Element). Until today, as the number of packets in a TX MPWQE (Multi-Packet WQE) descriptor is not known in advance, the driver pre-prepared contiguous memory for the largest possible WQE. For this, when getting too close to the fragment edge, having no room for the largest WQE possible, the driver was filling the fragment remainder with NOP descriptors, aligning the next descriptor to the beginning of the next fragment. Generating and handling these NOPs wastes resources, like: CPU cycles, work-queue entries fetched to the device, and PCI bandwidth. In this patch, we replace this NOPs filling mechanism in the TX MPWQE flow. Instead, we utilize the remaining entries of the fragment with a TX MPWQE. If this room turns out to be too small, we simply open an additional descriptor starting at the beginning of the next fragment. Performance benchmark: uperf test, single server against 3 clients. TCP multi-stream, bidir, traffic profile "2x350B read, 1400B write". Bottleneck is in inbound PCI bandwidth (device POV). +---------------+------------+------------+--------+ | | Before | After | | +---------------+------------+------------+--------+ | BW | 117.4 Gbps | 121.1 Gbps | +3.1% | +---------------+------------+------------+--------+ | tx_packets | 15 M/sec | 15.5 M/sec | +3.3% | +---------------+------------+------------+--------+ | tx_nops | 3 M/sec | 0 | -100% | +---------------+------------+------------+--------+ Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/1742391746-118647-1-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25Merge remote-tracking branches 'ras/edac-cxl', 'ras/edac-drivers' and ↵Borislav Petkov (AMD)
'ras/edac-misc' into edac-updates * ras/edac-cxl: EDAC/device: Fix dev_set_name() format string EDAC: Update memory repair control interface for memory sparing feature EDAC: Add a memory repair control feature EDAC: Add a Error Check Scrub control feature EDAC: Add scrub control feature EDAC: Add support for EDAC device features control * ras/edac-drivers: EDAC/ie31200: Switch Raptor Lake-S to interrupt mode EDAC/ie31200: Add Intel Raptor Lake-S SoCs support EDAC/ie31200: Break up ie31200_probe1() EDAC/ie31200: Fold the two channel loops into one loop EDAC/ie31200: Make struct dimm_data contain decoded information EDAC/ie31200: Make the memory controller resources configurable EDAC/ie31200: Simplify the pci_device_id table EDAC/ie31200: Fix the 3rd parameter name of *populate_dimm_info() EDAC/ie31200: Fix the error path order of ie31200_init() EDAC/ie31200: Fix the DIMM size mask for several SoCs EDAC/ie31200: Fix the size of EDAC_MC_LAYER_CHIP_SELECT layer EDAC/{skx_common,i10nm}: Fix some missing error reports on Emerald Rapids EDAC/igen6: Fix the flood of invalid error reports EDAC/ie31200: work around false positive build warning * ras/edac-misc: MAINTAINERS: Add a secondary maintainer for bluefield_edac EDAC/pnd2: Make read-only const array intlv static EDAC/igen6: Constify struct res_config EDAC/amd64: Simplify return statement in dct_ecc_enabled() EDAC: Use string choice helper functions Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
2025-03-25Merge branch '100GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2025-03-18 (ice, idpf) For ice: Przemek modifies string declarations to resolve compile issues on gcc 7.5. Karol adds padding to initial programming of GLTSYN_TIME* registers to ensure it will occur in the future to prevent hardware issues. Jesse Brandeburg turns off driver RDMA capability when the corresponding kernel config is not enabled to aid in preventing resource exhaustion. Jan adjusts type declaration to properly catch error conditions and prevent truncation of values. He also adds bounds checking to prevent overflow in ice_vc_cfg_q_quanta(). Lukasz adds checking and error reporting for invalid values in ice_vc_cfg_q_bw(). Mateusz adds check for valid size for ice_vc_fdir_parse_raw(). For idpf: Emil adds check, and handling, on failure to register netdev. * '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: idpf: check error for register_netdev() on init ice: fix using untrusted value of pkt_len in ice_vc_fdir_parse_raw() ice: fix input validation for virtchnl BW ice: validate queue quanta parameters to prevent OOB access ice: stop truncating queue ids when checking virtchnl: make proto and filter action count unsigned ice: fix reservation of resources for RDMA when disabled ice: ensure periodic output start time is in the future ice: health.c: fix compilation on gcc 7.5 ==================== Link: https://patch.msgid.link/20250318200511.2958251-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: ti: cpsw: Add metadata support for xdp modeLorenzo Bianconi
Set metadata size building the skb from xdp_buff in cpsw/cpsw_new drivers. ti cpsw and cpsw_new drivers set xdp headroom at least to CPSW_HEADROOM_NA: CPSW_HEADROOM_NA max(XDP_PACKET_HEADROOM, NET_SKB_PAD) + NET_IP_ALIGN so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-7-b6075778f61f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: mana: Add metadata support for xdp modeLorenzo Bianconi
Set metadata size building the skb from xdp_buff in mana driver. mana driver sets xdp headroom to XDP_PACKET_HEADROOM so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-6-b6075778f61f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: ethernet: mediatek: Add metadata support for xdp modeLorenzo Bianconi
Set metadata size building the skb from xdp_buff in mediatek driver. mtk_eth_soc driver sets xdp headroom to XDP_PACKET_HEADROOM so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-5-b6075778f61f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: octeontx2: Add metadata support for xdp modeLorenzo Bianconi
Set metadata size building the skb from xdp_buff in octeontx2 driver. octeontx2 driver sets xdp headroom to OTX2_HEAD_ROOM OTX2_HEAD_ROOM OTX2_ALIGN OTX2_ALIGN 128 so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-4-b6075778f61f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: netsec: Add metadata support for xdp modeLorenzo Bianconi
Set metadata size building the skb from xdp_buff in netsec driver. netsec driver sets xdp headroom to NETSEC_RXBUF_HEADROOM: NETSEC_RXBUF_HEADROOM max(XDP_PACKET_HEADROOM, NET_SKB_PAD) + NET_IP_ALIGN so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-3-b6075778f61f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: mvpp2: Add metadata support for xdp modeLorenzo Bianconi
Set metadata size building the skb from xdp_buff in mvpp2 driver mvpp2 driver sets xdp headroom to: MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM where MVPP2_MH_SIZE 2 MVPP2_SKB_HEADROOM min(max(XDP_PACKET_HEADROOM, NET_SKB_PAD), 224) so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-2-b6075778f61f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: mvneta: Add metadata support for xdp modeLorenzo Bianconi
Set metadata size building the skb from xdp_buff in mvneta driver mvneta sets xdp headroom to: MVNETA_MH_SIZE + MVNETA_SKB_HEADROOM where MVNETA_MH_SIZE 2 MVNETA_SKB_HEADROOM max(NET_SKB_PAD, XDP_PACKET_HEADROOM) so the headroom is large enough to contain xdp_frame and xdp metadata. Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-1-b6075778f61f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: tulip: avoid unused variable warningSimon Horman
There is an effort to achieve W=1 kernel builds without warnings. As part of that effort Helge Deller highlighted the following warnings in the tulip driver when compiling with W=1 and CONFIG_TULIP_MWI=n: .../tulip_core.c: In function ‘tulip_init_one’: .../tulip_core.c:1309:22: warning: variable ‘force_csr0’ set but not used This patch addresses that problem using IS_ENABLED(). This approach has the added benefit of reducing conditionally compiled code. And thus increasing compile coverage. E.g. for allmodconfig builds which enable CONFIG_TULIP_MWI. Compile tested only. No run-time effect intended. Acked-by: Helge Deller <deller@gmx.de> Signed-off-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250318-tulip-w1-v3-1-a813fadd164d@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24Merge tag 'x86-core-2025-03-22' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core x86 updates from Ingo Molnar: "x86 CPU features support: - Generate the <asm/cpufeaturemasks.h> header based on build config (H. Peter Anvin, Xin Li) - x86 CPUID parsing updates and fixes (Ahmed S. Darwish) - Introduce the 'setcpuid=' boot parameter (Brendan Jackman) - Enable modifying CPU bug flags with '{clear,set}puid=' (Brendan Jackman) - Utilize CPU-type for CPU matching (Pawan Gupta) - Warn about unmet CPU feature dependencies (Sohil Mehta) - Prepare for new Intel Family numbers (Sohil Mehta) Percpu code: - Standardize & reorganize the x86 percpu layout and related cleanups (Brian Gerst) - Convert the stackprotector canary to a regular percpu variable (Brian Gerst) - Add a percpu subsection for cache hot data (Brian Gerst) - Unify __pcpu_op{1,2}_N() macros to __pcpu_op_N() (Uros Bizjak) - Construct __percpu_seg_override from __percpu_seg (Uros Bizjak) MM: - Add support for broadcast TLB invalidation using AMD's INVLPGB instruction (Rik van Riel) - Rework ROX cache to avoid writable copy (Mike Rapoport) - PAT: restore large ROX pages after fragmentation (Kirill A. Shutemov, Mike Rapoport) - Make memremap(MEMREMAP_WB) map memory as encrypted by default (Kirill A. Shutemov) - Robustify page table initialization (Kirill A. Shutemov) - Fix flush_tlb_range() when used for zapping normal PMDs (Jann Horn) - Clear _PAGE_DIRTY for kernel mappings when we clear _PAGE_RW (Matthew Wilcox) KASLR: - x86/kaslr: Reduce KASLR entropy on most x86 systems, to support PCI BAR space beyond the 10TiB region (CONFIG_PCI_P2PDMA=y) (Balbir Singh) CPU bugs: - Implement FineIBT-BHI mitigation (Peter Zijlstra) - speculation: Simplify and make CALL_NOSPEC consistent (Pawan Gupta) - speculation: Add a conditional CS prefix to CALL_NOSPEC (Pawan Gupta) - RFDS: Exclude P-only parts from the RFDS affected list (Pawan Gupta) System calls: - Break up entry/common.c (Brian Gerst) - Move sysctls into arch/x86 (Joel Granados) Intel LAM support updates: (Maciej Wieczor-Retman) - selftests/lam: Move cpu_has_la57() to use cpuinfo flag - selftests/lam: Skip test if LAM is disabled - selftests/lam: Test get_user() LAM pointer handling AMD SMN access updates: - Add SMN offsets to exclusive region access (Mario Limonciello) - Add support for debugfs access to SMN registers (Mario Limonciello) - Have HSMP use SMN through AMD_NODE (Yazen Ghannam) Power management updates: (Patryk Wlazlyn) - Allow calling mwait_play_dead with an arbitrary hint - ACPI/processor_idle: Add FFH state handling - intel_idle: Provide the default enter_dead() handler - Eliminate mwait_play_dead_cpuid_hint() Build system: - Raise the minimum GCC version to 8.1 (Brian Gerst) - Raise the minimum LLVM version to 15.0.0 (Nathan Chancellor) Kconfig: (Arnd Bergmann) - Add cmpxchg8b support back to Geode CPUs - Drop 32-bit "bigsmp" machine support - Rework CONFIG_GENERIC_CPU compiler flags - Drop configuration options for early 64-bit CPUs - Remove CONFIG_HIGHMEM64G support - Drop CONFIG_SWIOTLB for PAE - Drop support for CONFIG_HIGHPTE - Document CONFIG_X86_INTEL_MID as 64-bit-only - Remove old STA2x11 support - Only allow CONFIG_EISA for 32-bit Headers: - Replace __ASSEMBLY__ with __ASSEMBLER__ in UAPI and non-UAPI headers (Thomas Huth) Assembly code & machine code patching: - x86/alternatives: Simplify alternative_call() interface (Josh Poimboeuf) - x86/alternatives: Simplify callthunk patching (Peter Zijlstra) - KVM: VMX: Use named operands in inline asm (Josh Poimboeuf) - x86/hyperv: Use named operands in inline asm (Josh Poimboeuf) - x86/traps: Cleanup and robustify decode_bug() (Peter Zijlstra) - x86/kexec: Merge x86_32 and x86_64 code using macros from <asm/asm.h> (Uros Bizjak) - Use named operands in inline asm (Uros Bizjak) - Improve performance by using asm_inline() for atomic locking instructions (Uros Bizjak) Earlyprintk: - Harden early_serial (Peter Zijlstra) NMI handler: - Add an emergency handler in nmi_desc & use it in nmi_shootdown_cpus() (Waiman Long) Miscellaneous fixes and cleanups: - by Ahmed S. Darwish, Andy Shevchenko, Ard Biesheuvel, Artem Bityutskiy, Borislav Petkov, Brendan Jackman, Brian Gerst, Dan Carpenter, Dr. David Alan Gilbert, H. Peter Anvin, Ingo Molnar, Josh Poimboeuf, Kevin Brodsky, Mike Rapoport, Lukas Bulwahn, Maciej Wieczor-Retman, Max Grobecker, Patryk Wlazlyn, Pawan Gupta, Peter Zijlstra, Philip Redkin, Qasim Ijaz, Rik van Riel, Thomas Gleixner, Thorsten Blum, Tom Lendacky, Tony Luck, Uros Bizjak, Vitaly Kuznetsov, Xin Li, liuye" * tag 'x86-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (211 commits) zstd: Increase DYNAMIC_BMI2 GCC version cutoff from 4.8 to 11.0 to work around compiler segfault x86/asm: Make asm export of __ref_stack_chk_guard unconditional x86/mm: Only do broadcast flush from reclaim if pages were unmapped perf/x86/intel, x86/cpu: Replace Pentium 4 model checks with VFM ones perf/x86/intel, x86/cpu: Simplify Intel PMU initialization x86/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-UAPI headers x86/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in UAPI headers x86/locking/atomic: Improve performance by using asm_inline() for atomic locking instructions x86/asm: Use asm_inline() instead of asm() in clwb() x86/asm: Use CLFLUSHOPT and CLWB mnemonics in <asm/special_insns.h> x86/hweight: Use asm_inline() instead of asm() x86/hweight: Use ASM_CALL_CONSTRAINT in inline asm() x86/hweight: Use named operands in inline asm() x86/stackprotector/64: Only export __ref_stack_chk_guard on CONFIG_SMP x86/head/64: Avoid Clang < 17 stack protector in startup code x86/kexec: Merge x86_32 and x86_64 code using macros from <asm/asm.h> x86/runtime-const: Add the RUNTIME_CONST_PTR assembly macro x86/cpu/intel: Limit the non-architectural constant_tsc model checks x86/mm/pat: Replace Intel x86_model checks with VFM ones x86/cpu/intel: Fix fast string initialization for extended Families ...
2025-03-24Merge tag 'objtool-core-2025-03-22' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool updates from Ingo Molnar: - The biggest change is the new option to automatically fail the build on objtool warnings: CONFIG_OBJTOOL_WERROR. While there are no currently known unfixed false positives left, such an expansion in the severity of objtool warnings inevitably creates a risk of build failures, so it's disabled by default and depends on !COMPILE_TEST, so it shouldn't be enabled on allyesconfig/allmodconfig builds and won't be forced on people who just accept build-time defaults in 'make oldconfig'. While the option is strongly recommended, only people who enable it explicitly should see it. (Josh Poimboeuf) - Disable branch profiling in noinstr code with a broad brush that includes all of arch/x86/ and kernel/sched/. (Josh Poimboeuf) - Create backup object files on objtool errors and print exact objtool arguments to make failure analysis easier (Josh Poimboeuf) - Improve noreturn handling (Josh Poimboeuf) - Improve rodata handling (Tiezhu Yang) - Support jump tables, switch tables and goto tables on LoongArch (Tiezhu Yang) - Misc cleanups and fixes (Josh Poimboeuf, David Engraf, Ingo Molnar) * tag 'objtool-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits) tracing: Disable branch profiling in noinstr code objtool: Use O_CREAT with explicit mode mask objtool: Add CONFIG_OBJTOOL_WERROR objtool: Create backup on error and print args objtool: Change "warning:" to "error:" for --Werror objtool: Add --Werror option objtool: Add --output option objtool: Upgrade "Linked object detected" warning to error objtool: Consolidate option validation objtool: Remove --unret dependency on --rethunk objtool: Increase per-function WARN_FUNC() rate limit objtool: Update documentation objtool: Improve __noreturn annotation warning objtool: Fix error handling inconsistencies in check() x86/traps: Make exc_double_fault() consistently noreturn LoongArch: Enable jump table for objtool objtool/LoongArch: Add support for goto table objtool/LoongArch: Add support for switch table objtool: Handle PC relative relocation type objtool: Handle different entry size of rodata ...
2025-03-24Merge tag 'bitmap-for-6.15' of https://github.com/norov/linuxLinus Torvalds
Pull bitmap updates from Yury Norov: - cpumask_next_wrap() rework (me) - GENMASK() simplification (I Hsin) - rust bindings for cpumasks (Viresh and me) - scattered cleanups (Andy, Tamir, Vincent, Ignacio and Joel) * tag 'bitmap-for-6.15' of https://github.com/norov/linux: (22 commits) cpumask: align text in comment riscv: fix test_and_{set,clear}_bit ordering documentation treewide: fix typo 'unsigned __init128' -> 'unsigned __int128' MAINTAINERS: add rust bindings entry for bitmap API rust: Add cpumask helpers uapi: Revert "bitops: avoid integer overflow in GENMASK(_ULL)" cpumask: drop cpumask_next_wrap_old() PCI: hv: Switch hv_compose_multi_msi_req_get_cpu() to using cpumask_next_wrap() scsi: lpfc: rework lpfc_next_{online,present}_cpu() scsi: lpfc: switch lpfc_irq_rebalance() to using cpumask_next_wrap() s390: switch stop_machine_yield() to using cpumask_next_wrap() padata: switch padata_find_next() to using cpumask_next_wrap() cpumask: use cpumask_next_wrap() where appropriate cpumask: re-introduce cpumask_next{,_and}_wrap() cpumask: deprecate cpumask_next_wrap() powerpc/xmon: simplify xmon_batch_next_cpu() ibmvnic: simplify ibmvnic_set_queue_affinity() virtio_net: simplify virtnet_set_affinity() objpool: rework objpool_pop() cpumask: add for_each_{possible,online}_cpu_wrap ...
2025-03-24Merge tag 'docs-6.15' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation updates from Jonathan Corbet: "It has been a reasonably busy cycle for docs... - Significant changes throughout the tree to bring Python code up to current standards and raise the minimum Python required to 3.9 Much of this is preparatory to replacing the ancient Perl scripts/kernel-doc horror with a slightly less horrifying Python implementation, expected for 6.16 - Update the minimum Sphinx required to 3.4.3, allowing us to remove a bunch of older compatibility code - Rework and improve the generation of the ABI documentation (All of the above done by Mauro) - Lots of translation updates. Alex Shi and Yanteng Si are taking on responsibility for the Chinese translations going forward; that work will still get to you via docs-next - Try to standardize the format for indicating a developer's affiliation in commit tags - Clarify the TAB's role in CoC enforcement actions - Try to spell out the rules for when a commit tag can name another developer without their explicit permission Plus lots of other typo fixes and updates" * tag 'docs-6.15' of git://git.lwn.net/linux: (98 commits) docs/zh_CN: fix spelling mistake docs/Chinese: change the disclaimer words docs/zh_CN: Add snp-tdx-threat-model index Chinese translation docs: driver-api: firmware: clarify userspace requirements docs: clarify rules wrt tagging other people docs: Remove outdated highuid.rst documentation Documentation: dma-buf: heaps: Add heap name definitions docs/.../submit-checklist: Use Documentation/admin-guide/abi.rst for cross-ref of README docs: Correct installation instruction Documentation: kcsan: fix "Plain Accesses and Data Races" URL in kcsan.rst Documentation/CoC: Spell out the TAB role in enforcement decisions Documentation: ocxl.rst: Update consortium site scripts: get_feat.pl: substitute s390x with s390 scripts/kernel-doc: drop dead code for Wcontents_before_sections scripts/kernel-doc: don't add not needed new lines docs: driver-api/infiniband.rst: fix Kerneldoc markup drivers: firewire: firewire-cdev.h: fix identation on a kernel-doc markup drivers: media: intel-ipu3.h: fix identation on a kernel-doc markup include/asm-generic/io.h: fix kerneldoc markup Docs/arch/arm64: Fix spelling in amu.rst ...
2025-03-24net/mlx5: Start health poll after enable hcaMoshe Shemesh
The health poll mechanism performs periodic checks to detect firmware errors. One of the checks verifies the function is still enabled on firmware side, but the function is enabled only after enable_hca command completed. Start health poll after enable_hca command to avoid a race between function enabled and first health polling. Fixes: 9b98d395b85d ("net/mlx5: Start health poll at earlier stage of driver load") Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Shay Drori <shayd@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Link: https://patch.msgid.link/1742331077-102038-3-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24net/mlx5: LAG, reload representors on LAG creation failureMark Bloch
When LAG creation fails, the driver reloads the RDMA devices. If RDMA representors are present, they should also be reloaded. This step was missed in the cited commit. Fixes: 598fe77df855 ("net/mlx5: Lag, Create shared FDB when in switchdev mode") Signed-off-by: Mark Bloch <mbloch@nvidia.com> Reviewed-by: Shay Drori <shayd@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Link: https://patch.msgid.link/1742331077-102038-2-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25Merge tag 'drm-intel-gt-next-2025-03-12' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/i915/kernel into drm-next UAPI Changes: - Increase I915_PARAM_MMAP_GTT_VERSION version to indicate support for partial mmaps (José Roberto de Souza) Driver Changes: Fixes/improvements/new stuff: - Implement vmap/vunmap GEM object functions (Asbjørn Sloth Tønnesen) Miscellaneous: - Various register definition cleanups (Ville Syrjälä) - Fix typo in a comment [gt/uc] (Yuichiro Tsuji) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Tvrtko Ursulin <tursulin@igalia.com> Link: https://patchwork.freedesktop.org/patch/msgid/Z9IXs5CzHHKScuQn@linux
2025-03-24net: dsa: sja1105: fix kasan out-of-bounds warning in ↵Vladimir Oltean
sja1105_table_delete_entry() There are actually 2 problems: - deleting the last element doesn't require the memmove of elements [i + 1, end) over it. Actually, element i+1 is out of bounds. - The memmove itself should move size - i - 1 elements, because the last element is out of bounds. The out-of-bounds element still remains out of bounds after being accessed, so the problem is only that we touch it, not that it becomes in active use. But I suppose it can lead to issues if the out-of-bounds element is part of an unmapped page. Fixes: 6666cebc5e30 ("net: dsa: sja1105: Add support for VLAN operations") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250318115716.2124395-4-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24net: dsa: sja1105: reject other RX filters than HWTSTAMP_FILTER_PTP_V2_L2_EVENTVladimir Oltean
This is all that we can support timestamping, so we shouldn't accept anything else. Also see sja1105_hwtstamp_get(). To avoid erroring out in an inconsistent state, operate on copies of priv->hwts_rx_en and priv->hwts_tx_en, and write them back when nothing else can fail anymore. Fixes: a602afd200f5 ("net: dsa: sja1105: Expose PTP timestamping ioctls to userspace") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250318115716.2124395-3-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24net: dsa: sja1105: fix displaced ethtool statistics countersVladimir Oltean
Port counters with no name (aka sja1105_port_counters[__SJA1105_COUNTER_UNUSED]) are skipped when reporting sja1105_get_sset_count(), but are not skipped during sja1105_get_strings() and sja1105_get_ethtool_stats(). As a consequence, the first reported counter has an empty name and a bogus value (reads from area 0, aka MAC, from offset 0, bits start:end 0:0). Also, the last counter (N_NOT_REACH on E/T, N_RX_BCAST on P/Q/R/S) gets pushed out of the statistics counters that get shown. Skip __SJA1105_COUNTER_UNUSED consistently, so that the bogus counter with an empty name disappears, and in its place appears a valid counter. Fixes: 039b167d68a3 ("net: dsa: sja1105: don't use burst SPI reads for port statistics") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250318115716.2124395-2-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24Merge tag 'hardening-v6.15-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening updates from Kees Cook: "As usual, it's scattered changes all over. Patches touching things outside of our traditional areas in the tree have been Acked by maintainers or were trivial changes: - loadpin: remove unsupported MODULE_COMPRESS_NONE (Arulpandiyan Vadivel) - samples/check-exec: Fix script name (Mickaël Salaün) - yama: remove needless locking in yama_task_prctl() (Oleg Nesterov) - lib/string_choices: Sort by function name (R Sundar) - hardening: Allow default HARDENED_USERCOPY to be set at compile time (Mel Gorman) - uaccess: Split out compile-time checks into ucopysize.h - kbuild: clang: Support building UM with SUBARCH=i386 - x86: Enable i386 FORTIFY_SOURCE on Clang 16+ - ubsan/overflow: Rework integer overflow sanitizer option - Add missing __nonstring annotations for callers of memtostr*()/strtomem*() - Add __must_be_noncstr() and have memtostr*()/strtomem*() check for it - Introduce __nonstring_array for silencing future GCC 15 warnings" * tag 'hardening-v6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (26 commits) compiler_types: Introduce __nonstring_array hardening: Enable i386 FORTIFY_SOURCE on Clang 16+ x86/build: Remove -ffreestanding on i386 with GCC ubsan/overflow: Enable ignorelist parsing and add type filter ubsan/overflow: Enable pattern exclusions ubsan/overflow: Rework integer overflow sanitizer option to turn on everything samples/check-exec: Fix script name yama: don't abuse rcu_read_lock/get_task_struct in yama_task_prctl() kbuild: clang: Support building UM with SUBARCH=i386 loadpin: remove MODULE_COMPRESS_NONE as it is no longer supported lib/string_choices: Rearrange functions in sorted order string.h: Validate memtostr*()/strtomem*() arguments more carefully compiler.h: Introduce __must_be_noncstr() nilfs2: Mark on-disk strings as nonstring uapi: stddef.h: Introduce __kernel_nonstring x86/tdx: Mark message.bytes as nonstring string: kunit: Mark nonstring test strings as __nonstring scsi: qla2xxx: Mark device strings as nonstring scsi: mpt3sas: Mark device strings as nonstring scsi: mpi3mr: Mark device strings as nonstring ...
2025-03-24mlxsw: spectrum_acl_bloom_filter: Workaround for some LLVM versionsWangYuli
This is a workaround to mitigate a compiler anomaly. During LLVM toolchain compilation of this driver on s390x architecture, an unreasonable __write_overflow_field warning occurs. Contextually, chunk_index is restricted to 0, 1 or 2. By expanding these possibilities, the compile warning is suppressed. Fix follow error with clang-19 when -Werror: In file included from drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_bloom_filter.c:5: In file included from ./include/linux/gfp.h:7: In file included from ./include/linux/mmzone.h:8: In file included from ./include/linux/spinlock.h:63: In file included from ./include/linux/lockdep.h:14: In file included from ./include/linux/smp.h:13: In file included from ./include/linux/cpumask.h:12: In file included from ./include/linux/bitmap.h:13: In file included from ./include/linux/string.h:392: ./include/linux/fortify-string.h:571:4: error: call to '__write_overflow_field' declared with 'warning' attribute: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror,-Wattribute-warning] 571 | __write_overflow_field(p_size_field, size); | ^ 1 error generated. According to the testing, we can be fairly certain that this is a clang compiler bug, impacting only clang-19 and below. Clang versions 20 and 21 do not exhibit this behavior. Link: https://lore.kernel.org/all/484364B641C901CD+20250311141025.1624528-1-wangyuli@uniontech.com/ Fixes: 7585cacdb978 ("mlxsw: spectrum_acl: Add Bloom filter handling") Co-developed-by: Zijian Chen <czj2441@163.com> Signed-off-by: Zijian Chen <czj2441@163.com> Co-developed-by: Wentao Guan <guanwentao@uniontech.com> Signed-off-by: Wentao Guan <guanwentao@uniontech.com> Suggested-by: Paolo Abeni <pabeni@redhat.com> Co-developed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Tested-by: WangYuli <wangyuli@uniontech.com> Signed-off-by: WangYuli <wangyuli@uniontech.com> Link: https://patch.msgid.link/A1858F1D36E653E0+20250318103654.708077-1-wangyuli@uniontech.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24mlxsw: Add VXLAN bridge ports to same hardware domain as physical bridge portsAmit Cohen
When hardware floods packets to bridge ports, but flooding to VXLAN bridge port fails during encapsulation to one of the remote VTEPs, the packets are trapped to CPU. In such case, the packets are marked with skb->offload_fwd_mark, which means that packet was L2-forwarded in hardware. Software data path repeats flooding, but packets which are marked with skb->offload_fwd_mark will not be flooded by the bridge to bridge ports which are in the same hardware domain as the ingress port. Currently, mlxsw does not add VXLAN bridge ports to the same hardware domain as physical bridge ports despite the fact that the device is able to forward packets to and from VXLAN tunnels in hardware. In some scenarios (as mentioned above) this can result in remote VTEPs receiving duplicate packets. The packets are first flooded by hardware and after an encapsulation failure, they are flooded again to all remote VTEPs by software. Solve this by adding VXLAN bridge ports to the same hardware domain as physical bridge ports, so then nbp_switchdev_allowed_egress() will return false also for VXLAN, and packets will not be sent twice from VXLAN device. switchdev_bridge_port_offload() should get vxlan_dev not as const, so some changes are required. Call switchdev API from mlxsw_sp_bridge_vxlan_{join,leave}() which handle offload configurations. Reported-by: Vladimir Oltean <olteanv@gmail.com> Closes: https://lore.kernel.org/all/20250210152246.4ajumdchwhvbarik@skbuf/ Reported-by: Vladyslav Mykhaliuk <vmykhaliuk@nvidia.com> Signed-off-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/7279056843140fae3a72c2d204c7886b79d03899.1742224300.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24mlxsw: spectrum_switchdev: Move mlxsw_sp_bridge_vxlan_join()Amit Cohen
Next patch will call __mlxsw_sp_bridge_vxlan_leave() from mlxsw_sp_bridge_vxlan_join() as part of error flow, move the function to be able to call the second one. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/64750a0965536530482318578bada30fac372b8a.1742224300.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>