From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/crypto/qat/qat_common/adf_dev_mgr.c | 450 ++++++++++++++++++++++++++++ 1 file changed, 450 insertions(+) create mode 100644 drivers/crypto/qat/qat_common/adf_dev_mgr.c (limited to 'drivers/crypto/qat/qat_common/adf_dev_mgr.c') diff --git a/drivers/crypto/qat/qat_common/adf_dev_mgr.c b/drivers/crypto/qat/qat_common/adf_dev_mgr.c new file mode 100644 index 000000000..4c752eed1 --- /dev/null +++ b/drivers/crypto/qat/qat_common/adf_dev_mgr.c @@ -0,0 +1,450 @@ +// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) +/* Copyright(c) 2014 - 2020 Intel Corporation */ +#include +#include +#include "adf_cfg.h" +#include "adf_common_drv.h" + +static LIST_HEAD(accel_table); +static LIST_HEAD(vfs_table); +static DEFINE_MUTEX(table_lock); +static u32 num_devices; +static u8 id_map[ADF_MAX_DEVICES]; + +struct vf_id_map { + u32 bdf; + u32 id; + u32 fake_id; + bool attached; + struct list_head list; +}; + +static int adf_get_vf_id(struct adf_accel_dev *vf) +{ + return ((7 * (PCI_SLOT(accel_to_pci_dev(vf)->devfn) - 1)) + + PCI_FUNC(accel_to_pci_dev(vf)->devfn) + + (PCI_SLOT(accel_to_pci_dev(vf)->devfn) - 1)); +} + +static int adf_get_vf_num(struct adf_accel_dev *vf) +{ + return (accel_to_pci_dev(vf)->bus->number << 8) | adf_get_vf_id(vf); +} + +static struct vf_id_map *adf_find_vf(u32 bdf) +{ + struct list_head *itr; + + list_for_each(itr, &vfs_table) { + struct vf_id_map *ptr = + list_entry(itr, struct vf_id_map, list); + + if (ptr->bdf == bdf) + return ptr; + } + return NULL; +} + +static int adf_get_vf_real_id(u32 fake) +{ + struct list_head *itr; + + list_for_each(itr, &vfs_table) { + struct vf_id_map *ptr = + list_entry(itr, struct vf_id_map, list); + if (ptr->fake_id == fake) + return ptr->id; + } + return -1; +} + +/** + * adf_clean_vf_map() - Cleans VF id mapings + * + * Function cleans internal ids for virtual functions. + * @vf: flag indicating whether mappings is cleaned + * for vfs only or for vfs and pfs + */ +void adf_clean_vf_map(bool vf) +{ + struct vf_id_map *map; + struct list_head *ptr, *tmp; + + mutex_lock(&table_lock); + list_for_each_safe(ptr, tmp, &vfs_table) { + map = list_entry(ptr, struct vf_id_map, list); + if (map->bdf != -1) { + id_map[map->id] = 0; + num_devices--; + } + + if (vf && map->bdf == -1) + continue; + + list_del(ptr); + kfree(map); + } + mutex_unlock(&table_lock); +} +EXPORT_SYMBOL_GPL(adf_clean_vf_map); + +/** + * adf_devmgr_update_class_index() - Update internal index + * @hw_data: Pointer to internal device data. + * + * Function updates internal dev index for VFs + */ +void adf_devmgr_update_class_index(struct adf_hw_device_data *hw_data) +{ + struct adf_hw_device_class *class = hw_data->dev_class; + struct list_head *itr; + int i = 0; + + list_for_each(itr, &accel_table) { + struct adf_accel_dev *ptr = + list_entry(itr, struct adf_accel_dev, list); + + if (ptr->hw_device->dev_class == class) + ptr->hw_device->instance_id = i++; + + if (i == class->instances) + break; + } +} +EXPORT_SYMBOL_GPL(adf_devmgr_update_class_index); + +static unsigned int adf_find_free_id(void) +{ + unsigned int i; + + for (i = 0; i < ADF_MAX_DEVICES; i++) { + if (!id_map[i]) { + id_map[i] = 1; + return i; + } + } + return ADF_MAX_DEVICES + 1; +} + +/** + * adf_devmgr_add_dev() - Add accel_dev to the acceleration framework + * @accel_dev: Pointer to acceleration device. + * @pf: Corresponding PF if the accel_dev is a VF + * + * Function adds acceleration device to the acceleration framework. + * To be used by QAT device specific drivers. + * + * Return: 0 on success, error code otherwise. + */ +int adf_devmgr_add_dev(struct adf_accel_dev *accel_dev, + struct adf_accel_dev *pf) +{ + struct list_head *itr; + int ret = 0; + + if (num_devices == ADF_MAX_DEVICES) { + dev_err(&GET_DEV(accel_dev), "Only support up to %d devices\n", + ADF_MAX_DEVICES); + return -EFAULT; + } + + mutex_lock(&table_lock); + atomic_set(&accel_dev->ref_count, 0); + + /* PF on host or VF on guest - optimized to remove redundant is_vf */ + if (!accel_dev->is_vf || !pf) { + struct vf_id_map *map; + + list_for_each(itr, &accel_table) { + struct adf_accel_dev *ptr = + list_entry(itr, struct adf_accel_dev, list); + + if (ptr == accel_dev) { + ret = -EEXIST; + goto unlock; + } + } + + list_add_tail(&accel_dev->list, &accel_table); + accel_dev->accel_id = adf_find_free_id(); + if (accel_dev->accel_id > ADF_MAX_DEVICES) { + ret = -EFAULT; + goto unlock; + } + num_devices++; + map = kzalloc(sizeof(*map), GFP_KERNEL); + if (!map) { + ret = -ENOMEM; + goto unlock; + } + map->bdf = ~0; + map->id = accel_dev->accel_id; + map->fake_id = map->id; + map->attached = true; + list_add_tail(&map->list, &vfs_table); + } else if (accel_dev->is_vf && pf) { + /* VF on host */ + struct vf_id_map *map; + + map = adf_find_vf(adf_get_vf_num(accel_dev)); + if (map) { + struct vf_id_map *next; + + accel_dev->accel_id = map->id; + list_add_tail(&accel_dev->list, &accel_table); + map->fake_id++; + map->attached = true; + next = list_next_entry(map, list); + while (next && &next->list != &vfs_table) { + next->fake_id++; + next = list_next_entry(next, list); + } + + ret = 0; + goto unlock; + } + + map = kzalloc(sizeof(*map), GFP_KERNEL); + if (!map) { + ret = -ENOMEM; + goto unlock; + } + accel_dev->accel_id = adf_find_free_id(); + if (accel_dev->accel_id > ADF_MAX_DEVICES) { + kfree(map); + ret = -EFAULT; + goto unlock; + } + num_devices++; + list_add_tail(&accel_dev->list, &accel_table); + map->bdf = adf_get_vf_num(accel_dev); + map->id = accel_dev->accel_id; + map->fake_id = map->id; + map->attached = true; + list_add_tail(&map->list, &vfs_table); + } +unlock: + mutex_unlock(&table_lock); + return ret; +} +EXPORT_SYMBOL_GPL(adf_devmgr_add_dev); + +struct list_head *adf_devmgr_get_head(void) +{ + return &accel_table; +} + +/** + * adf_devmgr_rm_dev() - Remove accel_dev from the acceleration framework. + * @accel_dev: Pointer to acceleration device. + * @pf: Corresponding PF if the accel_dev is a VF + * + * Function removes acceleration device from the acceleration framework. + * To be used by QAT device specific drivers. + * + * Return: void + */ +void adf_devmgr_rm_dev(struct adf_accel_dev *accel_dev, + struct adf_accel_dev *pf) +{ + mutex_lock(&table_lock); + /* PF on host or VF on guest - optimized to remove redundant is_vf */ + if (!accel_dev->is_vf || !pf) { + id_map[accel_dev->accel_id] = 0; + num_devices--; + } else if (accel_dev->is_vf && pf) { + struct vf_id_map *map, *next; + + map = adf_find_vf(adf_get_vf_num(accel_dev)); + if (!map) { + dev_err(&GET_DEV(accel_dev), "Failed to find VF map\n"); + goto unlock; + } + map->fake_id--; + map->attached = false; + next = list_next_entry(map, list); + while (next && &next->list != &vfs_table) { + next->fake_id--; + next = list_next_entry(next, list); + } + } +unlock: + list_del(&accel_dev->list); + mutex_unlock(&table_lock); +} +EXPORT_SYMBOL_GPL(adf_devmgr_rm_dev); + +struct adf_accel_dev *adf_devmgr_get_first(void) +{ + struct adf_accel_dev *dev = NULL; + + if (!list_empty(&accel_table)) + dev = list_first_entry(&accel_table, struct adf_accel_dev, + list); + return dev; +} + +/** + * adf_devmgr_pci_to_accel_dev() - Get accel_dev associated with the pci_dev. + * @pci_dev: Pointer to PCI device. + * + * Function returns acceleration device associated with the given PCI device. + * To be used by QAT device specific drivers. + * + * Return: pointer to accel_dev or NULL if not found. + */ +struct adf_accel_dev *adf_devmgr_pci_to_accel_dev(struct pci_dev *pci_dev) +{ + struct list_head *itr; + + mutex_lock(&table_lock); + list_for_each(itr, &accel_table) { + struct adf_accel_dev *ptr = + list_entry(itr, struct adf_accel_dev, list); + + if (ptr->accel_pci_dev.pci_dev == pci_dev) { + mutex_unlock(&table_lock); + return ptr; + } + } + mutex_unlock(&table_lock); + return NULL; +} +EXPORT_SYMBOL_GPL(adf_devmgr_pci_to_accel_dev); + +struct adf_accel_dev *adf_devmgr_get_dev_by_id(u32 id) +{ + struct list_head *itr; + int real_id; + + mutex_lock(&table_lock); + real_id = adf_get_vf_real_id(id); + if (real_id < 0) + goto unlock; + + id = real_id; + + list_for_each(itr, &accel_table) { + struct adf_accel_dev *ptr = + list_entry(itr, struct adf_accel_dev, list); + if (ptr->accel_id == id) { + mutex_unlock(&table_lock); + return ptr; + } + } +unlock: + mutex_unlock(&table_lock); + return NULL; +} + +int adf_devmgr_verify_id(u32 id) +{ + if (id == ADF_CFG_ALL_DEVICES) + return 0; + + if (adf_devmgr_get_dev_by_id(id)) + return 0; + + return -ENODEV; +} + +static int adf_get_num_dettached_vfs(void) +{ + struct list_head *itr; + int vfs = 0; + + mutex_lock(&table_lock); + list_for_each(itr, &vfs_table) { + struct vf_id_map *ptr = + list_entry(itr, struct vf_id_map, list); + if (ptr->bdf != ~0 && !ptr->attached) + vfs++; + } + mutex_unlock(&table_lock); + return vfs; +} + +void adf_devmgr_get_num_dev(u32 *num) +{ + *num = num_devices - adf_get_num_dettached_vfs(); +} + +/** + * adf_dev_in_use() - Check whether accel_dev is currently in use + * @accel_dev: Pointer to acceleration device. + * + * To be used by QAT device specific drivers. + * + * Return: 1 when device is in use, 0 otherwise. + */ +int adf_dev_in_use(struct adf_accel_dev *accel_dev) +{ + return atomic_read(&accel_dev->ref_count) != 0; +} +EXPORT_SYMBOL_GPL(adf_dev_in_use); + +/** + * adf_dev_get() - Increment accel_dev reference count + * @accel_dev: Pointer to acceleration device. + * + * Increment the accel_dev refcount and if this is the first time + * incrementing it during this period the accel_dev is in use, + * increment the module refcount too. + * To be used by QAT device specific drivers. + * + * Return: 0 when successful, EFAULT when fail to bump module refcount + */ +int adf_dev_get(struct adf_accel_dev *accel_dev) +{ + if (atomic_add_return(1, &accel_dev->ref_count) == 1) + if (!try_module_get(accel_dev->owner)) + return -EFAULT; + return 0; +} +EXPORT_SYMBOL_GPL(adf_dev_get); + +/** + * adf_dev_put() - Decrement accel_dev reference count + * @accel_dev: Pointer to acceleration device. + * + * Decrement the accel_dev refcount and if this is the last time + * decrementing it during this period the accel_dev is in use, + * decrement the module refcount too. + * To be used by QAT device specific drivers. + * + * Return: void + */ +void adf_dev_put(struct adf_accel_dev *accel_dev) +{ + if (atomic_sub_return(1, &accel_dev->ref_count) == 0) + module_put(accel_dev->owner); +} +EXPORT_SYMBOL_GPL(adf_dev_put); + +/** + * adf_devmgr_in_reset() - Check whether device is in reset + * @accel_dev: Pointer to acceleration device. + * + * To be used by QAT device specific drivers. + * + * Return: 1 when the device is being reset, 0 otherwise. + */ +int adf_devmgr_in_reset(struct adf_accel_dev *accel_dev) +{ + return test_bit(ADF_STATUS_RESTARTING, &accel_dev->status); +} +EXPORT_SYMBOL_GPL(adf_devmgr_in_reset); + +/** + * adf_dev_started() - Check whether device has started + * @accel_dev: Pointer to acceleration device. + * + * To be used by QAT device specific drivers. + * + * Return: 1 when the device has started, 0 otherwise + */ +int adf_dev_started(struct adf_accel_dev *accel_dev) +{ + return test_bit(ADF_STATUS_STARTED, &accel_dev->status); +} +EXPORT_SYMBOL_GPL(adf_dev_started); -- cgit v1.2.3