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/net/wwan/iosm/iosm_ipc_devlink.c | 322 +++++++++++++++++++++++++++++++ 1 file changed, 322 insertions(+) create mode 100644 drivers/net/wwan/iosm/iosm_ipc_devlink.c (limited to 'drivers/net/wwan/iosm/iosm_ipc_devlink.c') diff --git a/drivers/net/wwan/iosm/iosm_ipc_devlink.c b/drivers/net/wwan/iosm/iosm_ipc_devlink.c new file mode 100644 index 000000000..2fe724d62 --- /dev/null +++ b/drivers/net/wwan/iosm/iosm_ipc_devlink.c @@ -0,0 +1,322 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2020-2021 Intel Corporation. + */ +#include + +#include "iosm_ipc_chnl_cfg.h" +#include "iosm_ipc_coredump.h" +#include "iosm_ipc_devlink.h" +#include "iosm_ipc_flash.h" + +/* Coredump list */ +static struct iosm_coredump_file_info list[IOSM_NOF_CD_REGION] = { + {"report.json", REPORT_JSON_SIZE,}, + {"coredump.fcd", COREDUMP_FCD_SIZE,}, + {"cdd.log", CDD_LOG_SIZE,}, + {"eeprom.bin", EEPROM_BIN_SIZE,}, + {"bootcore_trace.bin", BOOTCORE_TRC_BIN_SIZE,}, + {"bootcore_prev_trace.bin", BOOTCORE_PREV_TRC_BIN_SIZE,}, +}; + +/* Get the param values for the specific param ID's */ +static int ipc_devlink_get_param(struct devlink *dl, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct iosm_devlink *ipc_devlink = devlink_priv(dl); + + if (id == IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH) + ctx->val.vu8 = ipc_devlink->param.erase_full_flash; + + return 0; +} + +/* Set the param values for the specific param ID's */ +static int ipc_devlink_set_param(struct devlink *dl, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct iosm_devlink *ipc_devlink = devlink_priv(dl); + + if (id == IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH) + ipc_devlink->param.erase_full_flash = ctx->val.vu8; + + return 0; +} + +/* Devlink param structure array */ +static const struct devlink_param iosm_devlink_params[] = { + DEVLINK_PARAM_DRIVER(IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH, + "erase_full_flash", DEVLINK_PARAM_TYPE_BOOL, + BIT(DEVLINK_PARAM_CMODE_RUNTIME), + ipc_devlink_get_param, ipc_devlink_set_param, + NULL), +}; + +/* Get devlink flash component type */ +static enum iosm_flash_comp_type +ipc_devlink_get_flash_comp_type(const char comp_str[], u32 len) +{ + enum iosm_flash_comp_type fls_type; + + if (!strncmp("PSI", comp_str, len)) + fls_type = FLASH_COMP_TYPE_PSI; + else if (!strncmp("EBL", comp_str, len)) + fls_type = FLASH_COMP_TYPE_EBL; + else if (!strncmp("FLS", comp_str, len)) + fls_type = FLASH_COMP_TYPE_FLS; + else + fls_type = FLASH_COMP_TYPE_INVAL; + + return fls_type; +} + +/* Function triggered on devlink flash command + * Flash update function which calls multiple functions based on + * component type specified in the flash command + */ +static int ipc_devlink_flash_update(struct devlink *devlink, + struct devlink_flash_update_params *params, + struct netlink_ext_ack *extack) +{ + struct iosm_devlink *ipc_devlink = devlink_priv(devlink); + enum iosm_flash_comp_type fls_type; + struct iosm_devlink_image *header; + int rc = -EINVAL; + u8 *mdm_rsp; + + header = (struct iosm_devlink_image *)params->fw->data; + + if (!header || params->fw->size <= IOSM_DEVLINK_HDR_SIZE || + (memcmp(header->magic_header, IOSM_DEVLINK_MAGIC_HEADER, + IOSM_DEVLINK_MAGIC_HEADER_LEN) != 0)) + return -EINVAL; + + mdm_rsp = kzalloc(IOSM_EBL_DW_PACK_SIZE, GFP_KERNEL); + if (!mdm_rsp) + return -ENOMEM; + + fls_type = ipc_devlink_get_flash_comp_type(header->image_type, + IOSM_DEVLINK_MAX_IMG_LEN); + + switch (fls_type) { + case FLASH_COMP_TYPE_PSI: + rc = ipc_flash_boot_psi(ipc_devlink, params->fw); + break; + case FLASH_COMP_TYPE_EBL: + rc = ipc_flash_boot_ebl(ipc_devlink, params->fw); + if (rc) + break; + rc = ipc_flash_boot_set_capabilities(ipc_devlink, mdm_rsp); + if (rc) + break; + rc = ipc_flash_read_swid(ipc_devlink, mdm_rsp); + break; + case FLASH_COMP_TYPE_FLS: + rc = ipc_flash_send_fls(ipc_devlink, params->fw, mdm_rsp); + break; + default: + devlink_flash_update_status_notify(devlink, "Invalid component", + NULL, 0, 0); + break; + } + + if (!rc) + devlink_flash_update_status_notify(devlink, "Flashing success", + header->image_type, 0, 0); + else + devlink_flash_update_status_notify(devlink, "Flashing failed", + header->image_type, 0, 0); + + kfree(mdm_rsp); + return rc; +} + +/* Call back function for devlink ops */ +static const struct devlink_ops devlink_flash_ops = { + .flash_update = ipc_devlink_flash_update, +}; + +/** + * ipc_devlink_send_cmd - Send command to Modem + * @ipc_devlink: Pointer to struct iosm_devlink + * @cmd: Command to be sent to modem + * @entry: Command entry number + * + * Returns: 0 on success and failure value on error + */ +int ipc_devlink_send_cmd(struct iosm_devlink *ipc_devlink, u16 cmd, u32 entry) +{ + struct iosm_rpsi_cmd rpsi_cmd; + + rpsi_cmd.param.dword = cpu_to_le32(entry); + rpsi_cmd.cmd = cpu_to_le16(cmd); + rpsi_cmd.crc = rpsi_cmd.param.word[0] ^ rpsi_cmd.param.word[1] ^ + rpsi_cmd.cmd; + + return ipc_imem_sys_devlink_write(ipc_devlink, (u8 *)&rpsi_cmd, + sizeof(rpsi_cmd)); +} + +/* Function to create snapshot */ +static int ipc_devlink_coredump_snapshot(struct devlink *dl, + const struct devlink_region_ops *ops, + struct netlink_ext_ack *extack, + u8 **data) +{ + struct iosm_devlink *ipc_devlink = devlink_priv(dl); + struct iosm_coredump_file_info *cd_list = ops->priv; + u32 region_size; + int rc; + + dev_dbg(ipc_devlink->dev, "Region:%s, ID:%d", ops->name, + cd_list->entry); + region_size = cd_list->default_size; + rc = ipc_coredump_collect(ipc_devlink, data, cd_list->entry, + region_size); + if (rc) { + dev_err(ipc_devlink->dev, "Fail to create snapshot,err %d", rc); + goto coredump_collect_err; + } + + /* Send coredump end cmd indicating end of coredump collection */ + if (cd_list->entry == (IOSM_NOF_CD_REGION - 1)) + ipc_coredump_get_list(ipc_devlink, rpsi_cmd_coredump_end); + + return 0; + +coredump_collect_err: + ipc_coredump_get_list(ipc_devlink, rpsi_cmd_coredump_end); + return rc; +} + +/* To create regions for coredump files */ +static int ipc_devlink_create_region(struct iosm_devlink *devlink) +{ + struct devlink_region_ops *mdm_coredump; + int rc = 0; + int i; + + mdm_coredump = devlink->iosm_devlink_mdm_coredump; + for (i = 0; i < IOSM_NOF_CD_REGION; i++) { + mdm_coredump[i].name = list[i].filename; + mdm_coredump[i].snapshot = ipc_devlink_coredump_snapshot; + mdm_coredump[i].destructor = vfree; + devlink->cd_regions[i] = + devlink_region_create(devlink->devlink_ctx, + &mdm_coredump[i], MAX_SNAPSHOTS, + list[i].default_size); + + if (IS_ERR(devlink->cd_regions[i])) { + rc = PTR_ERR(devlink->cd_regions[i]); + dev_err(devlink->dev, "Devlink region fail,err %d", rc); + /* Delete previously created regions */ + for ( ; i >= 0; i--) + devlink_region_destroy(devlink->cd_regions[i]); + goto region_create_fail; + } + list[i].entry = i; + mdm_coredump[i].priv = list + i; + } +region_create_fail: + return rc; +} + +/* To Destroy devlink regions */ +static void ipc_devlink_destroy_region(struct iosm_devlink *ipc_devlink) +{ + u8 i; + + for (i = 0; i < IOSM_NOF_CD_REGION; i++) + devlink_region_destroy(ipc_devlink->cd_regions[i]); +} + +/** + * ipc_devlink_init - Initialize/register devlink to IOSM driver + * @ipc_imem: Pointer to struct iosm_imem + * + * Returns: Pointer to iosm_devlink on success and NULL on failure + */ +struct iosm_devlink *ipc_devlink_init(struct iosm_imem *ipc_imem) +{ + struct ipc_chnl_cfg chnl_cfg_flash = { 0 }; + struct iosm_devlink *ipc_devlink; + struct devlink *devlink_ctx; + int rc; + + devlink_ctx = devlink_alloc(&devlink_flash_ops, + sizeof(struct iosm_devlink), + ipc_imem->dev); + if (!devlink_ctx) { + dev_err(ipc_imem->dev, "devlink_alloc failed"); + goto devlink_alloc_fail; + } + + ipc_devlink = devlink_priv(devlink_ctx); + ipc_devlink->devlink_ctx = devlink_ctx; + ipc_devlink->pcie = ipc_imem->pcie; + ipc_devlink->dev = ipc_imem->dev; + + rc = devlink_params_register(devlink_ctx, iosm_devlink_params, + ARRAY_SIZE(iosm_devlink_params)); + if (rc) { + dev_err(ipc_devlink->dev, + "devlink_params_register failed. rc %d", rc); + goto param_reg_fail; + } + + ipc_devlink->cd_file_info = list; + + rc = ipc_devlink_create_region(ipc_devlink); + if (rc) { + dev_err(ipc_devlink->dev, "Devlink Region create failed, rc %d", + rc); + goto region_create_fail; + } + + if (ipc_chnl_cfg_get(&chnl_cfg_flash, IPC_MEM_CTRL_CHL_ID_7) < 0) + goto chnl_get_fail; + + ipc_imem_channel_init(ipc_imem, IPC_CTYPE_CTRL, + chnl_cfg_flash, IRQ_MOD_OFF); + + init_completion(&ipc_devlink->devlink_sio.read_sem); + skb_queue_head_init(&ipc_devlink->devlink_sio.rx_list); + + devlink_register(devlink_ctx); + dev_dbg(ipc_devlink->dev, "iosm devlink register success"); + + return ipc_devlink; + +chnl_get_fail: + ipc_devlink_destroy_region(ipc_devlink); +region_create_fail: + devlink_params_unregister(devlink_ctx, iosm_devlink_params, + ARRAY_SIZE(iosm_devlink_params)); +param_reg_fail: + devlink_free(devlink_ctx); +devlink_alloc_fail: + return NULL; +} + +/** + * ipc_devlink_deinit - To unintialize the devlink from IOSM driver. + * @ipc_devlink: Devlink instance + */ +void ipc_devlink_deinit(struct iosm_devlink *ipc_devlink) +{ + struct devlink *devlink_ctx = ipc_devlink->devlink_ctx; + + devlink_unregister(devlink_ctx); + ipc_devlink_destroy_region(ipc_devlink); + devlink_params_unregister(devlink_ctx, iosm_devlink_params, + ARRAY_SIZE(iosm_devlink_params)); + if (ipc_devlink->devlink_sio.devlink_read_pend) { + complete(&ipc_devlink->devlink_sio.read_sem); + complete(&ipc_devlink->devlink_sio.channel->ul_sem); + } + if (!ipc_devlink->devlink_sio.devlink_read_pend) + skb_queue_purge(&ipc_devlink->devlink_sio.rx_list); + + ipc_imem_sys_devlink_close(ipc_devlink); + devlink_free(devlink_ctx); +} -- cgit v1.2.3