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2023-04-30Merge tag 's390-6.4-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Add support for stackleak feature. Also allow specifying architecture-specific stackleak poison function to enable faster implementation. On s390, the mvc-based implementation helps decrease typical overhead from a factor of 3 to just 25% - Convert all assembler files to use SYM* style macros, deprecating the ENTRY() macro and other annotations. Select ARCH_USE_SYM_ANNOTATIONS - Improve KASLR to also randomize module and special amode31 code base load addresses - Rework decompressor memory tracking to support memory holes and improve error handling - Add support for protected virtualization AP binding - Add support for set_direct_map() calls - Implement set_memory_rox() and noexec module_alloc() - Remove obsolete overriding of mem*() functions for KASAN - Rework kexec/kdump to avoid using nodat_stack to call purgatory - Convert the rest of the s390 code to use flexible-array member instead of a zero-length array - Clean up uaccess inline asm - Enable ARCH_HAS_MEMBARRIER_SYNC_CORE - Convert to using CONFIG_FUNCTION_ALIGNMENT and enable DEBUG_FORCE_FUNCTION_ALIGN_64B - Resolve last_break in userspace fault reports - Simplify one-level sysctl registration - Clean up branch prediction handling - Rework CPU counter facility to retrieve available counter sets just once - Other various small fixes and improvements all over the code * tag 's390-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (118 commits) s390/stackleak: provide fast __stackleak_poison() implementation stackleak: allow to specify arch specific stackleak poison function s390: select ARCH_USE_SYM_ANNOTATIONS s390/mm: use VM_FLUSH_RESET_PERMS in module_alloc() s390: wire up memfd_secret system call s390/mm: enable ARCH_HAS_SET_DIRECT_MAP s390/mm: use BIT macro to generate SET_MEMORY bit masks s390/relocate_kernel: adjust indentation s390/relocate_kernel: use SYM* macros instead of ENTRY(), etc. s390/entry: use SYM* macros instead of ENTRY(), etc. s390/purgatory: use SYM* macros instead of ENTRY(), etc. s390/kprobes: use SYM* macros instead of ENTRY(), etc. s390/reipl: use SYM* macros instead of ENTRY(), etc. s390/head64: use SYM* macros instead of ENTRY(), etc. s390/earlypgm: use SYM* macros instead of ENTRY(), etc. s390/mcount: use SYM* macros instead of ENTRY(), etc. s390/crc32le: use SYM* macros instead of ENTRY(), etc. s390/crc32be: use SYM* macros instead of ENTRY(), etc. s390/crypto,chacha: use SYM* macros instead of ENTRY(), etc. s390/amode31: use SYM* macros instead of ENTRY(), etc. ...
2023-04-27Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
Pull virtio updates from Michael Tsirkin: "virtio,vhost,vdpa: features, fixes, and cleanups: - reduction in interrupt rate in virtio - perf improvement for VDUSE - scalability for vhost-scsi - non power of 2 ring support for packed rings - better management for mlx5 vdpa - suspend for snet - VIRTIO_F_NOTIFICATION_DATA - shared backend with vdpa-sim-blk - user VA support in vdpa-sim - better struct packing for virtio and fixes, cleanups all over the place" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (52 commits) vhost_vdpa: fix unmap process in no-batch mode MAINTAINERS: make me a reviewer of VIRTIO CORE AND NET DRIVERS tools/virtio: fix build caused by virtio_ring changes virtio_ring: add a struct device forward declaration vdpa_sim_blk: support shared backend vdpa_sim: move buffer allocation in the devices vdpa/snet: use likely/unlikely macros in hot functions vdpa/snet: implement kick_vq_with_data callback virtio-vdpa: add VIRTIO_F_NOTIFICATION_DATA feature support virtio: add VIRTIO_F_NOTIFICATION_DATA feature support vdpa/snet: support the suspend vDPA callback vdpa/snet: support getting and setting VQ state MAINTAINERS: add vringh.h to Virtio Core and Net Drivers vringh: address kdoc warnings vdpa: address kdoc warnings virtio_ring: don't update event idx on get_buf vdpa_sim: add support for user VA vdpa_sim: replace the spinlock with a mutex to protect the state vdpa_sim: use kthread worker vdpa_sim: make devices agnostic for work management ...
2023-04-27Merge tag 'driver-core-6.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the large set of driver core changes for 6.4-rc1. Once again, a busy development cycle, with lots of changes happening in the driver core in the quest to be able to move "struct bus" and "struct class" into read-only memory, a task now complete with these changes. This will make the future rust interactions with the driver core more "provably correct" as well as providing more obvious lifetime rules for all busses and classes in the kernel. The changes required for this did touch many individual classes and busses as many callbacks were changed to take const * parameters instead. All of these changes have been submitted to the various subsystem maintainers, giving them plenty of time to review, and most of them actually did so. Other than those changes, included in here are a small set of other things: - kobject logging improvements - cacheinfo improvements and updates - obligatory fw_devlink updates and fixes - documentation updates - device property cleanups and const * changes - firwmare loader dependency fixes. All of these have been in linux-next for a while with no reported problems" * tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits) device property: make device_property functions take const device * driver core: update comments in device_rename() driver core: Don't require dynamic_debug for initcall_debug probe timing firmware_loader: rework crypto dependencies firmware_loader: Strip off \n from customized path zram: fix up permission for the hot_add sysfs file cacheinfo: Add use_arch[|_cache]_info field/function arch_topology: Remove early cacheinfo error message if -ENOENT cacheinfo: Check cache properties are present in DT cacheinfo: Check sib_leaf in cache_leaves_are_shared() cacheinfo: Allow early level detection when DT/ACPI info is missing/broken cacheinfo: Add arm64 early level initializer implementation cacheinfo: Add arch specific early level initializer tty: make tty_class a static const structure driver core: class: remove struct class_interface * from callbacks driver core: class: mark the struct class in struct class_interface constant driver core: class: make class_register() take a const * driver core: class: mark class_release() as taking a const * driver core: remove incorrect comment for device_create* MIPS: vpe-cmp: remove module owner pointer from struct class usage. ...
2023-04-26Merge tag 'net-next-6.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Paolo Abeni: "Core: - Introduce a config option to tweak MAX_SKB_FRAGS. Increasing the default value allows for better BIG TCP performances - Reduce compound page head access for zero-copy data transfers - RPS/RFS improvements, avoiding unneeded NET_RX_SOFTIRQ when possible - Threaded NAPI improvements, adding defer skb free support and unneeded softirq avoidance - Address dst_entry reference count scalability issues, via false sharing avoidance and optimize refcount tracking - Add lockless accesses annotation to sk_err[_soft] - Optimize again the skb struct layout - Extends the skb drop reasons to make it usable by multiple subsystems - Better const qualifier awareness for socket casts BPF: - Add skb and XDP typed dynptrs which allow BPF programs for more ergonomic and less brittle iteration through data and variable-sized accesses - Add a new BPF netfilter program type and minimal support to hook BPF programs to netfilter hooks such as prerouting or forward - Add more precise memory usage reporting for all BPF map types - Adds support for using {FOU,GUE} encap with an ipip device operating in collect_md mode and add a set of BPF kfuncs for controlling encap params - Allow BPF programs to detect at load time whether a particular kfunc exists or not, and also add support for this in light skeleton - Bigger batch of BPF verifier improvements to prepare for upcoming BPF open-coded iterators allowing for less restrictive looping capabilities - Rework RCU enforcement in the verifier, add kptr_rcu and enforce BPF programs to NULL-check before passing such pointers into kfunc - Add support for kptrs in percpu hashmaps, percpu LRU hashmaps and in local storage maps - Enable RCU semantics for task BPF kptrs and allow referenced kptr tasks to be stored in BPF maps - Add support for refcounted local kptrs to the verifier for allowing shared ownership, useful for adding a node to both the BPF list and rbtree - Add BPF verifier support for ST instructions in convert_ctx_access() which will help new -mcpu=v4 clang flag to start emitting them - Add ARM32 USDT support to libbpf - Improve bpftool's visual program dump which produces the control flow graph in a DOT format by adding C source inline annotations Protocols: - IPv4: Allow adding to IPv4 address a 'protocol' tag. Such value indicates the provenance of the IP address - IPv6: optimize route lookup, dropping unneeded R/W lock acquisition - Add the handshake upcall mechanism, allowing the user-space to implement generic TLS handshake on kernel's behalf - Bridge: support per-{Port, VLAN} neighbor suppression, increasing resilience to nodes failures - SCTP: add support for Fair Capacity and Weighted Fair Queueing schedulers - MPTCP: delay first subflow allocation up to its first usage. This will allow for later better LSM interaction - xfrm: Remove inner/outer modes from input/output path. These are not needed anymore - WiFi: - reduced neighbor report (RNR) handling for AP mode - HW timestamping support - support for randomized auth/deauth TA for PASN privacy - per-link debugfs for multi-link - TC offload support for mac80211 drivers - mac80211 mesh fast-xmit and fast-rx support - enable Wi-Fi 7 (EHT) mesh support Netfilter: - Add nf_tables 'brouting' support, to force a packet to be routed instead of being bridged - Update bridge netfilter and ovs conntrack helpers to handle IPv6 Jumbo packets properly, i.e. fetch the packet length from hop-by-hop extension header. This is needed for BIT TCP support - The iptables 32bit compat interface isn't compiled in by default anymore - Move ip(6)tables builtin icmp matches to the udptcp one. This has the advantage that icmp/icmpv6 match doesn't load the iptables/ip6tables modules anymore when iptables-nft is used - Extended netlink error report for netdevice in flowtables and netdev/chains. Allow for incrementally add/delete devices to netdev basechain. Allow to create netdev chain without device Driver API: - Remove redundant Device Control Error Reporting Enable, as PCI core has already error reporting enabled at enumeration time - Move Multicast DB netlink handlers to core, allowing devices other then bridge to use them - Allow the page_pool to directly recycle the pages from safely localized NAPI - Implement lockless TX queue stop/wake combo macros, allowing for further code de-duplication and sanitization - Add YNL support for user headers and struct attrs - Add partial YNL specification for devlink - Add partial YNL specification for ethtool - Add tc-mqprio and tc-taprio support for preemptible traffic classes - Add tx push buf len param to ethtool, specifies the maximum number of bytes of a transmitted packet a driver can push directly to the underlying device - Add basic LED support for switch/phy - Add NAPI documentation, stop relaying on external links - Convert dsa_master_ioctl() to netdev notifier. This is a preparatory work to make the hardware timestamping layer selectable by user space - Add transceiver support and improve the error messages for CAN-FD controllers New hardware / drivers: - Ethernet: - AMD/Pensando core device support - MediaTek MT7981 SoC - MediaTek MT7988 SoC - Broadcom BCM53134 embedded switch - Texas Instruments CPSW9G ethernet switch - Qualcomm EMAC3 DWMAC ethernet - StarFive JH7110 SoC - NXP CBTX ethernet PHY - WiFi: - Apple M1 Pro/Max devices - RealTek rtl8710bu/rtl8188gu - RealTek rtl8822bs, rtl8822cs and rtl8821cs SDIO chipset - Bluetooth: - Realtek RTL8821CS, RTL8851B, RTL8852BS - Mediatek MT7663, MT7922 - NXP w8997 - Actions Semi ATS2851 - QTI WCN6855 - Marvell 88W8997 - Can: - STMicroelectronics bxcan stm32f429 Drivers: - Ethernet NICs: - Intel (1G, icg): - add tracking and reporting of QBV config errors - add support for configuring max SDU for each Tx queue - Intel (100G, ice): - refactor mailbox overflow detection to support Scalable IOV - GNSS interface optimization - Intel (i40e): - support XDP multi-buffer - nVidia/Mellanox: - add the support for linux bridge multicast offload - enable TC offload for egress and engress MACVLAN over bond - add support for VxLAN GBP encap/decap flows offload - extend packet offload to fully support libreswan - support tunnel mode in mlx5 IPsec packet offload - extend XDP multi-buffer support - support MACsec VLAN offload - add support for dynamic msix vectors allocation - drop RX page_cache and fully use page_pool - implement thermal zone to report NIC temperature - Netronome/Corigine: - add support for multi-zone conntrack offload - Solarflare/Xilinx: - support offloading TC VLAN push/pop actions to the MAE - support TC decap rules - support unicast PTP - Other NICs: - Broadcom (bnxt): enforce software based freq adjustments only on shared PHC NIC - RealTek (r8169): refactor to addess ASPM issues during NAPI poll - Micrel (lan8841): add support for PTP_PF_PEROUT - Cadence (macb): enable PTP unicast - Engleder (tsnep): add XDP socket zero-copy support - virtio-net: implement exact header length guest feature - veth: add page_pool support for page recycling - vxlan: add MDB data path support - gve: add XDP support for GQI-QPL format - geneve: accept every ethertype - macvlan: allow some packets to bypass broadcast queue - mana: add support for jumbo frame - Ethernet high-speed switches: - Microchip (sparx5): Add support for TC flower templates - Ethernet embedded switches: - Broadcom (b54): - configure 6318 and 63268 RGMII ports - Marvell (mv88e6xxx): - faster C45 bus scan - Microchip: - lan966x: - add support for IS1 VCAP - better TX/RX from/to CPU performances - ksz9477: add ETS Qdisc support - ksz8: enhance static MAC table operations and error handling - sama7g5: add PTP capability - NXP (ocelot): - add support for external ports - add support for preemptible traffic classes - Texas Instruments: - add CPSWxG SGMII support for J7200 and J721E - Intel WiFi (iwlwifi): - preparation for Wi-Fi 7 EHT and multi-link support - EHT (Wi-Fi 7) sniffer support - hardware timestamping support for some devices/firwmares - TX beacon protection on newer hardware - Qualcomm 802.11ax WiFi (ath11k): - MU-MIMO parameters support - ack signal support for management packets - RealTek WiFi (rtw88): - SDIO bus support - better support for some SDIO devices (e.g. MAC address from efuse) - RealTek WiFi (rtw89): - HW scan support for 8852b - better support for 6 GHz scanning - support for various newer firmware APIs - framework firmware backwards compatibility - MediaTek WiFi (mt76): - P2P support - mesh A-MSDU support - EHT (Wi-Fi 7) support - coredump support" * tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2078 commits) net: phy: hide the PHYLIB_LEDS knob net: phy: marvell-88x2222: remove unnecessary (void*) conversions tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp. net: amd: Fix link leak when verifying config failed net: phy: marvell: Fix inconsistent indenting in led_blink_set lan966x: Don't use xdp_frame when action is XDP_TX tsnep: Add XDP socket zero-copy TX support tsnep: Add XDP socket zero-copy RX support tsnep: Move skb receive action to separate function tsnep: Add functions for queue enable/disable tsnep: Rework TX/RX queue initialization tsnep: Replace modulo operation with mask net: phy: dp83867: Add led_brightness_set support net: phy: Fix reading LED reg property drivers: nfc: nfcsim: remove return value check of `dev_dir` net: phy: dp83867: Remove unnecessary (void*) conversions net: ethtool: coalesce: try to make user settings stick twice net: mana: Check if netdev/napi_alloc_frag returns single page net: mana: Rename mana_refill_rxoob and remove some empty lines net: veth: add page_pool stats ...
2023-04-26Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "Updates to the usual drivers (megaraid_sas, scsi_debug, lpfc, target, mpi3mr, hisi_sas, arcmsr). The major core change is the constification of the host templates (which touches everything) along with other minor fixups and clean ups" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (207 commits) scsi: ufs: mcq: Use pointer arithmetic in ufshcd_send_command() scsi: ufs: mcq: Annotate ufshcd_inc_sq_tail() appropriately scsi: cxlflash: s/semahpore/semaphore/ scsi: lpfc: Silence an incorrect device output scsi: mpi3mr: Use IRQ save variants of spinlock to protect chain frame allocation scsi: scsi_debug: Fix missing error code in scsi_debug_init() scsi: hisi_sas: Work around build failure in suspend function scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup() scsi: mpt3sas: Fix an issue when driver is being removed scsi: mpt3sas: Remove HBA BIOS version in the kernel log scsi: target: core: Fix invalid memory access scsi: scsi_debug: Drop sdebug_queue scsi: scsi_debug: Only allow sdebug_max_queue be modified when no shosts scsi: scsi_debug: Use scsi_host_busy() in delay_store() and ndelay_store() scsi: scsi_debug: Use blk_mq_tagset_busy_iter() in stop_all_queued() scsi: scsi_debug: Use blk_mq_tagset_busy_iter() in sdebug_blk_mq_poll() scsi: scsi_debug: Dynamically allocate sdebug_queued_cmd scsi: scsi_debug: Use scsi_block_requests() to block queues scsi: scsi_debug: Protect block_unblock_all_queues() with mutex scsi: scsi_debug: Change shost list lock to a mutex ...
2023-04-26Merge tag 'for-6.4/block-2023-04-21' of git://git.kernel.dk/linuxLinus Torvalds
Pull block updates from Jens Axboe: - drbd patches, bringing us closer to unifying the out-of-tree version and the in tree one (Andreas, Christoph) - support for auto-quiesce for the s390 dasd driver (Stefan) - MD pull request via Song: - md/bitmap: Optimal last page size (Jon Derrick) - Various raid10 fixes (Yu Kuai, Li Nan) - md: add error_handlers for raid0 and linear (Mariusz Tkaczyk) - NVMe pull request via Christoph: - Drop redundant pci_enable_pcie_error_reporting (Bjorn Helgaas) - Validate nvmet module parameters (Chaitanya Kulkarni) - Fence TCP socket on receive error (Chris Leech) - Fix async event trace event (Keith Busch) - Minor cleanups (Chaitanya Kulkarni, zhenwei pi) - Fix and cleanup nvmet Identify handling (Damien Le Moal, Christoph Hellwig) - Fix double blk_mq_complete_request race in the timeout handler (Lei Yin) - Fix irq locking in nvme-fcloop (Ming Lei) - Remove queue mapping helper for rdma devices (Sagi Grimberg) - use structured request attribute checks for nbd (Jakub) - fix blk-crypto race conditions between keyslot management (Eric) - add sed-opal support for reading read locking range attributes (Ondrej) - make fault injection configurable for null_blk (Akinobu) - clean up the request insertion API (Christoph) - clean up the queue running API (Christoph) - blkg config helper cleanups (Tejun) - lazy init support for blk-iolatency (Tejun) - various fixes and tweaks to ublk (Ming) - remove hybrid polling. It hasn't really been useful since we got async polled IO support, and these days we don't support sync polled IO at all (Keith) - misc fixes, cleanups, improvements (Zhong, Ondrej, Colin, Chengming, Chaitanya, me) * tag 'for-6.4/block-2023-04-21' of git://git.kernel.dk/linux: (118 commits) nbd: fix incomplete validation of ioctl arg ublk: don't return 0 in case of any failure sed-opal: geometry feature reporting command null_blk: Always check queue mode setting from configfs block: ublk: switch to ioctl command encoding blk-mq: fix the blk_mq_add_to_requeue_list call in blk_kick_flush block, bfq: Fix division by zero error on zero wsum fault-inject: fix build error when FAULT_INJECTION_CONFIGFS=y and CONFIGFS_FS=m block: store bdev->bd_disk->fops->submit_bio state in bdev block: re-arrange the struct block_device fields for better layout md/raid5: remove unused working_disks variable md/raid10: don't call bio_start_io_acct twice for bio which experienced read error md/raid10: fix memleak of md thread md/raid10: fix memleak for 'conf->bio_split' md/raid10: fix leak of 'r10bio->remaining' for recovery md/raid10: don't BUG_ON() in raise_barrier() md: fix soft lockup in status_resync md: add error_handlers for raid0 and linear md: Use optimal I/O size for last bitmap page md: Fix types in sb writer ...
2023-04-21virtio: add VIRTIO_F_NOTIFICATION_DATA feature supportViktor Prutyanov
According to VirtIO spec v1.2, VIRTIO_F_NOTIFICATION_DATA feature indicates that the driver passes extra data along with the queue notifications. In a split queue case, the extra data is 16-bit available index. In a packed queue case, the extra data is 1-bit wrap counter and 15-bit available index. Add support for this feature for MMIO, channel I/O and modern PCI transports. Signed-off-by: Viktor Prutyanov <viktor@daynix.com> Acked-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Message-Id: <20230413081855.36643-2-alvaro.karsz@solid-run.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-04-19s390/zcrypt: rework arrays with length zero occurrencesHarald Freudenberger
Review and rework all the zero length array occurrences within structs to flexible array fields or comment if not used at all. However, some struct fields are there for documentation purpose or to have correct sizeof() evaluation of a struct and thus should not get deleted. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-04-13s390/cio: replace zero-length array with flexible-array memberHeiko Carstens
There are numerous patches which convert zero-length arrays with a flexible-array member. Convert the remaining s390 occurrences. Suggested-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://github.com/KSPP/linux/issues/78 Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-04-13s390/sclp: replace zero-length array with flexible-array memberHeiko Carstens
There are numerous patches which convert zero-length arrays with a flexible-array member. Convert the remaining s390 occurrences. Suggested-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://github.com/KSPP/linux/issues/78 Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-04-11s390/dasd: fix hanging blockdevice after request requeueStefan Haberland
The DASD driver does not kick the requeue list when requeuing IO requests to the blocklayer. This might lead to hanging blockdevice when there is no other trigger for this. Fix by automatically kick the requeue list when requeuing DASD requests to the blocklayer. Fixes: e443343e509a ("s390/dasd: blk-mq conversion") CC: stable@vger.kernel.org # 4.14+ Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Link: https://lore.kernel.org/r/20230405142017.2446986-8-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-04-11s390/dasd: add autoquiesce event for start IO errorStefan Haberland
Add a check for errors in the start_io function that signal a not working device. Trigger an autoquiesce event in that case. Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Link: https://lore.kernel.org/r/20230405142017.2446986-7-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-04-11s390/dasd: add aq_timeouts autoquiesce triggerStefan Haberland
Add a sysfs attribute aq_timeouts that controls after how many timeouts a autoquiesce event might be triggered. The default value is 32768 which is the maximum number of retries for the DASD device driver DASD_RETRIES_MAX. This means that the timeout trigger will never happen. The default value for DASD retries is 255. Setting the value to below 255 will trigger the timeout autoquiesce event before an IO error is generated. Also add the check for the configured amount of timeouts and trigger an autoquiesce event if exceeded. Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Link: https://lore.kernel.org/r/20230405142017.2446986-6-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-04-11s390/dasd: add aq_requeue sysfs attributeStefan Haberland
Add a sysfs attribute to control if all IO requests will be requeued to the blocklayer in case of an autoquiesce event or not. A value of 1 means that in case of an autoquiesce event all IO requests will be requeued to the blocklayer. A value of 0 means that the device will only be stopped. Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Link: https://lore.kernel.org/r/20230405142017.2446986-5-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-04-11s390/dasd: add aq_mask sysfs attributeStefan Haberland
Add sysfs attribute that controls the DASD autoquiesce feature. The autoquiesce is disabled when 0 is echoed to the attribute. A value greater than 0 will enable the feature. The aq_mask attribute will accept an unsigned integer and the value will be interpreted as bitmask defining the trigger events that will lead to an automatic quiesce. The following autoquiesce triggers will currently be available: DASD_EER_FATALERROR 1 - any final I/O error DASD_EER_NOPATH 2 - no remaining paths for the device DASD_EER_STATECHANGE 3 - a state change interrupt occurred DASD_EER_PPRCSUSPEND 4 - the device is PPRC suspended DASD_EER_NOSPC 5 - there is no space remaining on an ESE device DASD_EER_TIMEOUT 6 - a certain amount of timeouts occurred DASD_EER_STARTIO 7 - the IO start function encountered an error The currently supported maximum value is 255. Bit 31 is reserved for internal usage. Bit 0 is not used. Example: - deactivate autoquiesce $ echo 0 > /sys/bus/ccw/0.0.1234/aq_mask - enable autoquiesce for FATALERROR, NOPATH and TIMEOUT (0000 0000 0000 0000 0000 0000 0100 0110 => 70) $ echo 70 > /sys/bus/ccw/0.0.1234/aq_mask Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Link: https://lore.kernel.org/r/20230405142017.2446986-4-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-04-11s390/dasd: add autoquiesce featureStefan Haberland
Add the internal logic to check for autoquiesce triggers and handle them. Quiesce and resume are functions that tell Linux to stop/resume issuing I/Os to a specific DASD. The DASD driver allows a manual quiesce/resume via ioctl. Autoquiesce will define an amount of triggers that will lead to an automatic quiesce if a certain event occurs. There is no automatic resume. All events will be reported via DASD Extended Error Reporting (EER) if configured. Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Link: https://lore.kernel.org/r/20230405142017.2446986-3-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-04-11s390/dasd: remove unused DASD EER definesStefan Haberland
Remove definitions that have never been used. Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Link: https://lore.kernel.org/r/20230405142017.2446986-2-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-04-04s390/zcrypt: simplify prep of CCA key tokenHarald Freudenberger
The preparation of the key data struct for a CCA RSA ME operation had some improvement to skip leading zeros in the key's exponent. However, all supported CCA cards nowadays support leading zeros in key tokens. So for simplifying the CCA key preparing code, this patch simply removes this optimization code. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Juergen Christ <jchrist@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-04-04s390/zcrypt: remove unused ancient padding codeHarald Freudenberger
There was some ancient code which padded the results of a clear key ME or CRT operation with some PKCS 1.2 header. According to the comment this was only needed by crypto cards older than the CEX2. These cards are not supported any more and so this patch removes this obscure result padding code. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Juergen Christ <jchrist@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-04-03Merge 6.3-rc5 into driver-core-nextGreg Kroah-Hartman
We need the fixes in here for testing, as well as the driver core changes for documentation updates to build on. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Conflicts: drivers/net/ethernet/mediatek/mtk_ppe.c 3fbe4d8c0e53 ("net: ethernet: mtk_eth_soc: ppe: add support for flow accounting") 924531326e2d ("net: ethernet: mtk_eth_soc: add missing ppe cache flush when deleting a flow") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-29driver core: class: mark the struct class for sysfs callbacks as constantGreg Kroah-Hartman
struct class should never be modified in a sysfs callback as there is nothing in the structure to modify, and frankly, the structure is almost never used in a sysfs callback, so mark it as constant to allow struct class to be moved to read-only memory. While we are touching all class sysfs callbacks also mark the attribute as constant as it can not be modified. The bonding code still uses this structure so it can not be removed from the function callbacks. Cc: "David S. Miller" <davem@davemloft.net> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Bartosz Golaszewski <brgl@bgdev.pl> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Miquel Raynal <miquel.raynal@bootlin.com> Cc: Namjae Jeon <linkinjeon@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Russ Weight <russell.h.weight@intel.com> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Steve French <sfrench@samba.org> Cc: Vignesh Raghavendra <vigneshr@ti.com> Cc: linux-cifs@vger.kernel.org Cc: linux-gpio@vger.kernel.org Cc: linux-mtd@lists.infradead.org Cc: linux-rdma@vger.kernel.org Cc: linux-s390@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: netdev@vger.kernel.org Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/20230325084537.3622280-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-27s390/vfio-ap: fix memory leak in vfio_ap device driverTony Krowiak
The device release callback function invoked to release the matrix device uses the dev_get_drvdata(device *dev) function to retrieve the pointer to the vfio_matrix_dev object in order to free its storage. The problem is, this object is not stored as drvdata with the device; since the kfree function will accept a NULL pointer, the memory for the vfio_matrix_dev object is never freed. Since the device being released is contained within the vfio_matrix_dev object, the container_of macro will be used to retrieve its pointer. Fixes: 1fde573413b5 ("s390: vfio-ap: base implementation of VFIO AP device driver") Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Harald Freudenberger <freude@linux.ibm.com> Link: https://lore.kernel.org/r/20230320150447.34557-1-akrowiak@linux.ibm.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-03-27s390/vfio-ap: remove redundant driver match functionLizhe
If there is no driver match function, the driver core assumes that each candidate pair (driver, device) matches, see driver_match_device(). Drop the matrix bus's match function that always returned 1 and so implements the same behaviour as when there is no match function Signed-off-by: Lizhe <sensor1010@163.com> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Link: https://lore.kernel.org/r/20230319041941.259830-1-sensor1010@163.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-03-24scsi: zfcp: Declare SCSI host template constBart Van Assche
Make it explicit that the SCSI host template is not modified. Acked-by: Benjamin Block <bblock@linux.ibm.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20230322195515.1267197-9-bvanassche@acm.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-24net/ism: Remove redundant pci_clear_masterCai Huoqing
Remove pci_clear_master to simplify the code, the bus-mastering is also cleared in do_pci_disable_device, like this: ./drivers/pci/pci.c:2197 static void do_pci_disable_device(struct pci_dev *dev) { u16 pci_command; pci_read_config_word(dev, PCI_COMMAND, &pci_command); if (pci_command & PCI_COMMAND_MASTER) { pci_command &= ~PCI_COMMAND_MASTER; pci_write_config_word(dev, PCI_COMMAND, pci_command); } pcibios_disable_device(dev); }. And dev->is_busmaster is set to 0 in pci_disable_device. Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-23driver core: bus: mark the struct bus_type for sysfs callbacks as constantGreg Kroah-Hartman
struct bus_type should never be modified in a sysfs callback as there is nothing in the structure to modify, and frankly, the structure is almost never used in a sysfs callback, so mark it as constant to allow struct bus_type to be moved to read-only memory. Cc: "David S. Miller" <davem@davemloft.net> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Alexandre Bounine <alex.bou9@gmail.com> Cc: Alison Schofield <alison.schofield@intel.com> Cc: Ben Widawsky <bwidawsk@kernel.org> Cc: Dexuan Cui <decui@microsoft.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Harald Freudenberger <freude@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Hu Haowen <src.res@email.cn> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Stuart Yoder <stuyoder@gmail.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Yanteng Si <siyanteng@loongson.cn> Acked-by: Ilya Dryomov <idryomov@gmail.com> # rbd Acked-by: Ira Weiny <ira.weiny@intel.com> # cxl Reviewed-by: Alex Shi <alexs@kernel.org> Acked-by: Iwona Winiarska <iwona.winiarska@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci Acked-by: Wei Liu <wei.liu@kernel.org> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> # scsi Link: https://lore.kernel.org/r/20230313182918.1312597-23-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-20s390/ap: add ap status asynch error supportHarald Freudenberger
Review and extend the low level AP code to be able to deal with asynchronous reported errors on APQNs. The hypervisor and the SE guest may be confronted with an asynchronously reported error at return of an AP instruction. So all places where AP instructions are called need review and may eventually need extensions. However, not all places need rework. As together with the AP status and the enabled asynch bit there is always a response code set. The asynch error reporting comes with new response codes which may be simple handled in the default case of a switch statement. The idea behind this patch is to report asynch errors as -EPERM (read this as "Operation not permitted") which reflects the fact that only a rapq (with F bit enabled) is a valid AP instruction when an asynch error is flagged. The AP queue state machine functions return AP_SM_WAIT_NONE when a asynch error is detected to reflect the fact, that the state machine can't do anything with such an error as long as the queue is reset. Unfortunately the ap bus scan function needed some update as the ap_queue_info() now needs to return 3 states: 1 if an APQN exists and info is available, -1 if it is assumed an APQN does not exist and the new return value 0 without any info values filled. This 0 returncode is handled as "there is an APQN but we currently don't know any more hw info about this, so please use your previous info and try again later". Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/ap: implement SE AP bind, unbind and associateHarald Freudenberger
Implementation of the new functions for SE AP support: bind, unbind and associate. There are two new sysfs attributes for this: /sys/devices/ap/cardxx/xx.yyyy/se_bind /sys/devices/ap/cardxx/xx.yyyy/se_associate Writing a 1 into the se_bind attribute triggers the SE AP bind for this AP queue, writing a 0 into does an unbind - that's a reset (RAPQ) with the F bit enabled. The se_associate attribute needs an integer value in range 0...2^16-1 written in. This is the index into a secrets table feed into the ultravisor. For more details please see the Architecture documents. These both new ap queue attributes are only visible inside a SE guest with SB (Secure Binding) available. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/ap: introduce low frequency polling possibilityHarald Freudenberger
For some events the ap bus needs to poll. For example when an AP queue is reset until the reset is through. Also when no interrupt support is available (e.g. zVM) there is a need to poll until all requests have been processed and all replies have been delivered. Polling is done with a high resolution timer by default run with a rate of 4kHz (LPAR) or 666Hz (zVM guest). For some events (wait for reset complete, wait for irq enabled complete) this is a much too high poll rate which triggers a lot of TAPQ invocations. This patch introduces the possibility for the state machine functions to return a new wait enum AP_SM_WAIT_LOW_TIMEOUT which gives a hint to the ap_wait() function to eventually set up the timer with a more relaxed timeout value of 25Hz. This patch also includes a slight rework of the sysfs functions parsing the timer related stuff: Use of kstrtobool and kstrtoul instead of sscanf. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/ap: provide F bit parameter for ap_rapq() and ap_zapq()Harald Freudenberger
Extent the ap inline functions ap_rapq() (calls PQAP(RAPQ)) and ap_zapq() (calls PQAP(ZAPQ)) with a new parameter to enable the new architectured F bit which forces an unassociate and/or unbind on a secure execution associated and/or bound queue. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/ap: filter ap card functions, new queue functions attributeHarald Freudenberger
With SE SB (Secure Binding) some currently unused and thus always zero bits in the TAPQ GR2 result are now used to show the binding state of a queue. So to check if a card has changed the comparing base is exactly this GR2 value shown as 'ap_function' in sysfs (/sys/devices/ap/cardxx/ap_functions). Now there is some queue specific info in this info and so a new mask TAPQ_CARD_FUNC_CMP_MASK is used to filter out only the relevant bits for card compare. For the same reason now the function bits (including exactly this bind/associate information) need to be exposed to user space now. So tools like lszcrypt can evaluate binding/association state on a queue base. So here comes a new sysfs attribute /sys/devices/ap/cardxx/xx.yyyy/ap_functions This sysfs attribute is similar to the already existing ap_functions attribute at ap card level. It shows the upper 32 bits of GR2 from an invocation of TAPQ for this AP queue. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/ap: make tapq gr2 response a structHarald Freudenberger
This patch introduces a new struct ap_tapq_gr2 which covers the response in GR2 on TAPQ invocation. This makes it much easier and less error-prone for the calling functions to access the right field without shifting and masking. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/ap: introduce new AP bus sysfs attribute featuresHarald Freudenberger
Introduce a new AP bus sysfs attribute /sys/bus/ap/features which shows the features from the QCI information. Currently these feature bits are evaluated: - QCI S bit is shown as 'APSC' - QCI N bit is shown as 'APXA' - QCI C bit is shown as 'QACT' - QCI R bit is shown as 'RC8A' - QCI B bit is shown as 'APSB' Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/ap: exploit new B bit from QCI config infoHarald Freudenberger
This patch introduces an update to the ap_config_info struct which is filled with the QCI subfunction. There is a new bit apsb (short 'B') showing if the AP secure bind facility is available. The patch also includes a simple function ap_sb_available() wrapping this bit test. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/zcrypt: replace scnprintf with sysfs_emitHarald Freudenberger
Replace scnprintf() with sysfs_emit() and friends where possible. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/zcrypt: rework length information for dqapHarald Freudenberger
The inline ap_dqap function does not return the number of bytes actually written into the message buffer. The calling code inspects the AP message header to figure out what kind of AP message has been received and pulls the length information from this header. This processing may not work correctly in cases where only a fragment of the reply is received. With this patch the ap_dqap inline function now returns the number of actually written bytes in the *length parameter. So the calling function has a chance to compare the number of received bytes against what the AP message header length field states. This is especially useful in cases where a message could only get partially received. The low level reply processing functions needed some rework to be able to catch this new length information and compare it the right way. The rework also deals with some situations where until now the reply length was not correctly calculated and/or set. All this has been heavily tested as the modifications on the reply length information may affect crypto load. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/zcrypt: make psmid unsigned long instead of long longHarald Freudenberger
Since s390 kernel build does not support 32 bit build any more there is no difference between long and long long. So this patch reworks all occurrences of psmid (a 64 bit value) to use unsigned long now. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20Merge branch 'decompressor-memory-tracking' into featuresHeiko Carstens
Vasily Gorbik says: =================== Combine and generalize all methods for finding unused memory in decompressor, while decreasing complexity, add memory holes support, while improving error handling (especially in low-memory conditions) and debug-ability. =================== Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20s390/boot: rename mem_detect to physmem_infoVasily Gorbik
In preparation to extending mem_detect with additional information like reserved ranges rename it to more generic physmem_info. This new naming also help to avoid confusion by using more exact terms like "physmem online ranges", etc. Acked-by: Heiko Carstens <hca@linux.ibm.com> Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-17driver core: class: remove module * from class_create()Greg Kroah-Hartman
The module pointer in class_create() never actually did anything, and it shouldn't have been requred to be set as a parameter even if it did something. So just remove it and fix up all callers of the function in the kernel tree at the same time. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Link: https://lore.kernel.org/r/20230313181843.1207845-4-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-15net/ism: Remove extra includeStefan Raspl
Signed-off-by: Stefan Raspl <raspl@linux.ibm.com> Signed-off-by: Wenjia Zhang <wenjia@linux.ibm.com> Reviewed-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-15net/smc: Introduce explicit check for v2 supportStefan Raspl
Previously, v2 support was derived from a very specific format of the SEID as part of the SMC-D codebase. Make this part of the SMC-D device API, so implementers do not need to adhere to a specific SEID format. Signed-off-by: Stefan Raspl <raspl@linux.ibm.com> Reviewed-and-tested-by: Jan Karcher <jaka@linux.ibm.com> Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com> Signed-off-by: Wenjia Zhang <wenjia@linux.ibm.com> Reviewed-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-13s390/zcrypt: remove unnecessary (void *) conversionsYu Zhe
Pointer variables of void * type do not require type cast. Signed-off-by: Yu Zhe <yuzhe@nfschina.com> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/r/20230303052155.21072-1-yuzhe@nfschina.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-03-03Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull more SCSI updates from James Bottomley: "Updates that missed the first pull, mostly because of needing more soak time. Driver updates (zfcp, ufs, mpi3mr, plus two ipr bug fixes), an enclosure services (ses) update (mostly bug fixes) and other minor bug fixes and changes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (32 commits) scsi: zfcp: Trace when request remove fails after qdio send fails scsi: zfcp: Change the type of all fsf request id fields and variables to u64 scsi: zfcp: Make the type for accessing request hashtable buckets size_t scsi: ufs: core: Simplify ufshcd_execute_start_stop() scsi: ufs: core: Rely on the block layer for setting RQF_PM scsi: core: Extend struct scsi_exec_args scsi: lpfc: Fix double word in comments scsi: core: Remove the /proc/scsi/${proc_name} directory earlier scsi: core: Fix a source code comment scsi: cxgbi: Remove unneeded version.h include scsi: qedi: Remove unneeded version.h include scsi: mpi3mr: Remove unneeded version.h include scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization scsi: mpi3mr: Use number of bits to manage bitmap sizes scsi: mpi3mr: Remove unnecessary memcpy() to alltgt_info->dmi scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info() scsi: mpi3mr: Fix an issue found by KASAN scsi: mpi3mr: Replace 1-element array with flex-array scsi: ipr: Work around fortify-string warning scsi: ipr: Make ipr_probe_ioa_part2() return void ...
2023-03-03Merge tag 's390-6.3-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull more s390 updates from Heiko Carstens: - Add empty command line parameter handling stubs to kernel for all command line parameters which are handled in the decompressor. This avoids invalid "Unknown kernel command line parameters" messages from the kernel, and also avoids that these will be incorrectly passed to user space. This caused already confusion, therefore add the empty stubs - Add missing phys_to_virt() handling to machine check handler - Introduce and use a union to be used for zcrypt inline assemblies. This makes sure that only a register wide member of the union is passed as input and output parameter to inline assemblies, while usual C code uses other members of the union to access bit fields of it - Add and use a READ_ONCE_ALIGNED_128() macro, which can be used to atomically read a 128-bit value from memory. This replaces the (mis-)use of the 128-bit cmpxchg operation to do the same in cpum_sf code. Currently gcc does not generate the used lpq instruction if __READ_ONCE() is used for aligned 128-bit accesses, therefore use this s390 specific helper - Simplify machine check handler code if a task needs to be killed because of e.g. register corruption due to a machine malfunction - Perform CPU reset to clear pending interrupts and TLB entries on an already stopped target CPU before delegating work to it - Generate arch/s390/boot/vmlinux.map link map for the decompressor, when CONFIG_VMLINUX_MAP is enabled for debugging purposes - Fix segment type handling for dcssblk devices. It incorrectly always returned type "READ/WRITE" even for read-only segements, which can result in a kernel panic if somebody tries to write to a read-only device - Sort config S390 select list again - Fix two kprobe reenter bugs revealed by a recently added kprobe kunit test * tag 's390-6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/kprobes: fix current_kprobe never cleared after kprobes reenter s390/kprobes: fix irq mask clobbering on kprobe reenter from post_handler s390/Kconfig: sort config S390 select list again s390/extmem: return correct segment type in __segment_load() s390/decompressor: add link map saving s390/smp: perform cpu reset before delegating work to target cpu s390/mcck: cleanup user process termination path s390/cpum_sf: use READ_ONCE_ALIGNED_128() instead of 128-bit cmpxchg s390/rwonce: add READ_ONCE_ALIGNED_128() macro s390/ap,zcrypt,vfio: introduce and use ap_queue_status_reg union s390/nmi: fix virtual-physical address confusion s390/setup: do not complain about parameters handled in decompressor
2023-02-27s390/ap,zcrypt,vfio: introduce and use ap_queue_status_reg unionHarald Freudenberger
Introduce a new ap queue status register wrapper union to access register wide values. So the inline assembler only sees register wide values but the surrounding code may use a more structured view of the same value and a reader of the code (and the compiler) gets a clear understanding about the mapping between fields and register values. All the changes to access the ap queue status are local to the inline functions within ap.h. However, the struct ap_qirq_ctrl has been replaces by a union for same reason and this needed slight adaptions in the calling code. Suggested-by: Halil Pasic <pasic@linux.ibm.com> Suggested-by: Andreas Arnez <arnez@linux.ibm.com> Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-02-25Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm updates from Paolo Bonzini: "ARM: - Provide a virtual cache topology to the guest to avoid inconsistencies with migration on heterogenous systems. Non secure software has no practical need to traverse the caches by set/way in the first place - Add support for taking stage-2 access faults in parallel. This was an accidental omission in the original parallel faults implementation, but should provide a marginal improvement to machines w/o FEAT_HAFDBS (such as hardware from the fruit company) - A preamble to adding support for nested virtualization to KVM, including vEL2 register state, rudimentary nested exception handling and masking unsupported features for nested guests - Fixes to the PSCI relay that avoid an unexpected host SVE trap when resuming a CPU when running pKVM - VGIC maintenance interrupt support for the AIC - Improvements to the arch timer emulation, primarily aimed at reducing the trap overhead of running nested - Add CONFIG_USERFAULTFD to the KVM selftests config fragment in the interest of CI systems - Avoid VM-wide stop-the-world operations when a vCPU accesses its own redistributor - Serialize when toggling CPACR_EL1.SMEN to avoid unexpected exceptions in the host - Aesthetic and comment/kerneldoc fixes - Drop the vestiges of the old Columbia mailing list and add [Oliver] as co-maintainer RISC-V: - Fix wrong usage of PGDIR_SIZE instead of PUD_SIZE - Correctly place the guest in S-mode after redirecting a trap to the guest - Redirect illegal instruction traps to guest - SBI PMU support for guest s390: - Sort out confusion between virtual and physical addresses, which currently are the same on s390 - A new ioctl that performs cmpxchg on guest memory - A few fixes x86: - Change tdp_mmu to a read-only parameter - Separate TDP and shadow MMU page fault paths - Enable Hyper-V invariant TSC control - Fix a variety of APICv and AVIC bugs, some of them real-world, some of them affecting architecurally legal but unlikely to happen in practice - Mark APIC timer as expired if its in one-shot mode and the count underflows while the vCPU task was being migrated - Advertise support for Intel's new fast REP string features - Fix a double-shootdown issue in the emergency reboot code - Ensure GIF=1 and disable SVM during an emergency reboot, i.e. give SVM similar treatment to VMX - Update Xen's TSC info CPUID sub-leaves as appropriate - Add support for Hyper-V's extended hypercalls, where "support" at this point is just forwarding the hypercalls to userspace - Clean up the kvm->lock vs. kvm->srcu sequences when updating the PMU and MSR filters - One-off fixes and cleanups - Fix and cleanup the range-based TLB flushing code, used when KVM is running on Hyper-V - Add support for filtering PMU events using a mask. If userspace wants to restrict heavily what events the guest can use, it can now do so without needing an absurd number of filter entries - Clean up KVM's handling of "PMU MSRs to save", especially when vPMU support is disabled - Add PEBS support for Intel Sapphire Rapids - Fix a mostly benign overflow bug in SEV's send|receive_update_data() - Move several SVM-specific flags into vcpu_svm x86 Intel: - Handle NMI VM-Exits before leaving the noinstr region - A few trivial cleanups in the VM-Enter flows - Stop enabling VMFUNC for L1 purely to document that KVM doesn't support EPTP switching (or any other VM function) for L1 - Fix a crash when using eVMCS's enlighted MSR bitmaps Generic: - Clean up the hardware enable and initialization flow, which was scattered around multiple arch-specific hooks. Instead, just let the arch code call into generic code. Both x86 and ARM should benefit from not having to fight common KVM code's notion of how to do initialization - Account allocations in generic kvm_arch_alloc_vm() - Fix a memory leak if coalesced MMIO unregistration fails selftests: - On x86, cache the CPU vendor (AMD vs. Intel) and use the info to emit the correct hypercall instruction instead of relying on KVM to patch in VMMCALL - Use TAP interface for kvm_binary_stats_test and tsc_msrs_test" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (325 commits) KVM: SVM: hyper-v: placate modpost section mismatch error KVM: x86/mmu: Make tdp_mmu_allowed static KVM: arm64: nv: Use reg_to_encoding() to get sysreg ID KVM: arm64: nv: Only toggle cache for virtual EL2 when SCTLR_EL2 changes KVM: arm64: nv: Filter out unsupported features from ID regs KVM: arm64: nv: Emulate EL12 register accesses from the virtual EL2 KVM: arm64: nv: Allow a sysreg to be hidden from userspace only KVM: arm64: nv: Emulate PSTATE.M for a guest hypervisor KVM: arm64: nv: Add accessors for SPSR_EL1, ELR_EL1 and VBAR_EL1 from virtual EL2 KVM: arm64: nv: Handle SMCs taken from virtual EL2 KVM: arm64: nv: Handle trapped ERET from virtual EL2 KVM: arm64: nv: Inject HVC exceptions to the virtual EL2 KVM: arm64: nv: Support virtual EL2 exceptions KVM: arm64: nv: Handle HCR_EL2.NV system register traps KVM: arm64: nv: Add nested virt VCPU primitives for vEL2 VCPU state KVM: arm64: nv: Add EL2 system registers to vcpu context KVM: arm64: nv: Allow userspace to set PSR_MODE_EL2x KVM: arm64: nv: Reset VCPU to EL2 registers if VCPU nested virt is set KVM: arm64: nv: Introduce nested virtualization VCPU feature KVM: arm64: Use the S2 MMU context to iterate over S2 table ...
2023-02-24Merge tag 'driver-core-6.3-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the large set of driver core changes for 6.3-rc1. There's a lot of changes this development cycle, most of the work falls into two different categories: - fw_devlink fixes and updates. This has gone through numerous review cycles and lots of review and testing by lots of different devices. Hopefully all should be good now, and Saravana will be keeping a watch for any potential regression on odd embedded systems. - driver core changes to work to make struct bus_type able to be moved into read-only memory (i.e. const) The recent work with Rust has pointed out a number of areas in the driver core where we are passing around and working with structures that really do not have to be dynamic at all, and they should be able to be read-only making things safer overall. This is the contuation of that work (started last release with kobject changes) in moving struct bus_type to be constant. We didn't quite make it for this release, but the remaining patches will be finished up for the release after this one, but the groundwork has been laid for this effort. Other than that we have in here: - debugfs memory leak fixes in some subsystems - error path cleanups and fixes for some never-able-to-be-hit codepaths. - cacheinfo rework and fixes - Other tiny fixes, full details are in the shortlog All of these have been in linux-next for a while with no reported problems" [ Geert Uytterhoeven points out that that last sentence isn't true, and that there's a pending report that has a fix that is queued up - Linus ] * tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits) debugfs: drop inline constant formatting for ERR_PTR(-ERROR) OPP: fix error checking in opp_migrate_dentry() debugfs: update comment of debugfs_rename() i3c: fix device.h kernel-doc warnings dma-mapping: no need to pass a bus_type into get_arch_dma_ops() driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place Revert "driver core: add error handling for devtmpfs_create_node()" Revert "devtmpfs: add debug info to handle()" Revert "devtmpfs: remove return value of devtmpfs_delete_node()" driver core: cpu: don't hand-override the uevent bus_type callback. devtmpfs: remove return value of devtmpfs_delete_node() devtmpfs: add debug info to handle() driver core: add error handling for devtmpfs_create_node() driver core: bus: update my copyright notice driver core: bus: add bus_get_dev_root() function driver core: bus: constify bus_unregister() driver core: bus: constify some internal functions driver core: bus: constify bus_get_kset() driver core: bus: constify bus_register/unregister_notifier() driver core: remove private pointer from struct bus_type ...
2023-02-24Merge tag 'tty-6.3-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial driver updates from Greg KH: "Here is the big set of serial and tty driver updates for 6.3-rc1. Once again, Jiri and Ilpo have done a number of core vt and tty/serial layer cleanups that were much needed and appreciated. Other than that, it's just a bunch of little tty/serial driver updates: - qcom-geni-serial driver updates - liteuart driver updates - hvcs driver cleanups - n_gsm updates and additions for new features - more 8250 device support added - fpga/dfl update and additions - imx serial driver updates - fsl_lpuart updates - other tiny fixes and updates for serial drivers All of these have been in linux-next for a while with no reported problems" * tag 'tty-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (143 commits) tty: n_gsm: add keep alive support serial: imx: remove a redundant check dt-bindings: serial: snps-dw-apb-uart: add dma & dma-names properties soc: qcom: geni-se: Move qcom-geni-se.h to linux/soc/qcom/geni-se.h tty: n_gsm: add TIOCMIWAIT support tty: n_gsm: add RING/CD control support tty: n_gsm: mark unusable ioctl structure fields accordingly serial: imx: get rid of registers shadowing serial: imx: refine local variables in rxint() serial: imx: stop using USR2 in FIFO reading loop serial: imx: remove redundant USR2 read from FIFO reading loop serial: imx: do not break from FIFO reading loop prematurely serial: imx: do not sysrq broken chars serial: imx: work-around for hardware RX flood serial: imx: factor-out common code to imx_uart_soft_reset() serial: 8250_pci1xxxx: Add power management functions to quad-uart driver serial: 8250_pci1xxxx: Add RS485 support to quad-uart driver serial: 8250_pci1xxxx: Add driver for quad-uart support serial: 8250_pci: Add serial8250_pci_setup_port definition in 8250_pcilib.c tty: pcn_uart: fix memory leak with using debugfs_lookup() ...
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